--- product_id: 324875050 title: "4ft Red Scuba Diving Open Bottom Surface Marker Buoy (SMB) with 49ft Finger Spool Alloy Dive Reel and Double Ended Bolt Clip - Gray" brand: "seafard" price: "Β£56.56" currency: GBP in_stock: true category: "Seafard" url: https://www.desertcart.co.uk/products/324875050-4ft-red-scuba-diving-open-bottom-surface-marker-buoy-smb store_origin: GB region: United Kingdom --- # 4ft Neon Red High-Visibility Tube 49ft Braided Nylon Line on Alloy Reel 210D Nylon + TPU Coating, Rupture Resistant 4ft Red Scuba Diving Open Bottom Surface Marker Buoy (SMB) with 49ft Finger Spool Alloy Dive Reel and Double Ended Bolt Clip - Gray **Brand:** seafard **Price:** Β£56.56 **Availability:** βœ… In Stock ## Summary > πŸ›Ÿ Dive Bold, Surface Safe β€” Be Seen, Be Secure! ## Quick Answers - **What is this?** 4ft Red Scuba Diving Open Bottom Surface Marker Buoy (SMB) with 49ft Finger Spool Alloy Dive Reel and Double Ended Bolt Clip - Gray by seafard - **How much does it cost?** Β£56.56 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/324875050-4ft-red-scuba-diving-open-bottom-surface-marker-buoy-smb) ## Best For - seafard enthusiasts ## Why This Product - Trusted seafard brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Compact & Travel-Ready:** Weighing just 360g, this SMB kit is perfect for cave, wreck, and travel divers who demand reliable, portable safety gear. - β€’ **Built to Withstand Pressure:** 210D nylon fabric with TPU coating plus an overpressure relief valve means no ruptures, even in challenging conditions. - β€’ **Effortless Inflation Options:** Fill via oral inflator or regulator through the open bottomβ€”versatility that adapts to your dive style. - β€’ **Corrosion-Resistant Dive Reel:** Lightweight aluminum alloy finger spool with 49ft braided nylon line and stainless steel double-ended bolt clip for secure, tangle-free line management. - β€’ **Stand Out with Neon Visibility:** 4ft bright red SMB with reflective bands ensures you're seen from afar, reducing dive risks and boosting safety. ## Overview This 4ft red surface marker buoy (SMB) kit from Seafard combines high-visibility neon tubing with reflective bands, a durable 210D nylon and TPU construction, and a corrosion-resistant aluminum dive reel with 49ft braided nylon line. Designed for easy inflation via oral or regulator, it features an overpressure relief valve to prevent ruptures. Lightweight and compact, it’s ideal for professional divers seeking reliable, versatile safety gear for cave, wreck, and open water diving. ## Description Description: Scuba diving surface marker buoy SMB kit with dive reel finger spool and 15m line, double ended bolt snap clip safety gear equipment High visibility inflatable surface marking buoy signal tube with reflective tape makes sure scuba divers can be seen in open ocean SMB can be filled using the oral inflator, or through the use of a inflator at bottom, you can also use standard BC hose to inflate Built-in over pressure relief valve allows the tube to ascend without rupturing Great accessories for cave and wreck diving, scuba diving, diver, snorkeling, spearfishing and other underwater activities Specification:Scuba Diving Surface Marker Buoy Material: Nylon, TPU Color:Gray,Blue Length: Approx. 120 cm/4 ft Width: Approx. 17.8 cm/7 inch Color: Orange Dive Reel Material: Aluminum alloy + 316 stainless steel Reel Diameter: Approx. 5.5 cm/2.2 inch Reel Thickness: Approx. 3.5 cm/1.4 inch Center Hole Diameter: Approx. 2.5 cm/1 inch Line Length: Approx. 15 m/49 ft Line Thickness: Approx. 2 mm/0.08 inch Bolt Snap Length: Approx. 9 cm/3.54 inch Package Includes: 1 Piece Scuba Diving Surface Marker Buoy 1 Piece Dive Reel Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks! ## Features - πŸ„ HIGH VISIBILITY DESIGN - The Neon red surface marker signal tube is a 4ft surface marker with a Reflective Band tape on both sides for maximum visibility. - πŸ„ EASY FILL & STABILITY - SMB (total weight 360 grams) can be filled using the oral inflator, or through the use of a regulator in the open bottom of the SMB. - πŸ„ RUPTURE RESISTANT - Made from a 210D Nylon Fabric with a TPU coating for added strength in all water conditions and a built-in over pressure relief valve allows the tube to ascend without rupturing. - πŸ„ SMB FINGER SPOOL - Strong and corrosion resistant aluminum metal finger spool dive reel with 49ft of braided nylon line and stainless steel double ended bolt clip. - πŸ„ LIGHTWEIGHT & COMPACT - The combination ideal for cave and wreck diving, scuba diving, travelling diver, snorkeling, photography and other underwater activities. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07TX99GTP | | ASIN | B07TX99GTP | | Best Sellers Rank | #19,494 in Sporting Goods ( See Top 100 in Sporting Goods ) #9 in Diving Safety Gear | | Brand Name | Seafard | | Color | 4FT Red SMB+Gray Reel | | Customer Reviews | 4.3 4.3 out of 5 stars (119) | | Customer reviews | 4.3 4.3 out of 5 stars (119) | | Date First Available | 16 September 2019 | | Department | Unisex | | Installation Method | built-in | | Item Diameter | 5.5 Centimeters | | Item Dimensions | 120 x 15 x 2 centimeters | | Item Type Name | Surface Marker Buoy | | Item Weight | 0.8 Pounds | | Item model number | dsfsdgfsg-001 | | Manufacturer | Seafard | | Manufacturer | Seafard | | Manufacturer Part Number | dsfsdgfsg-001 | | Material Type | Aluminum+Nylon | | Model Number | dsfsdgfsg-001 | | Operation Mode | Manual | | Product Dimensions | 120 x 15 x 2 cm; 362.87 g | | Style Name | Tube | | UPC | 725691765471 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Seafard - **Colour:** 4FT Red SMB+Gray Reel - **Item dimensions L x W x H:** 120 x 15 x 2 centimeters - **Material:** Aluminum+Nylon - **Style:** Tube ## Images ![4ft Red Scuba Diving Open Bottom Surface Marker Buoy (SMB) with 49ft Finger Spool Alloy Dive Reel and Double Ended Bolt Clip - Gray - Image 1](https://m.media-amazon.com/images/I/61e5i0rwuXL.jpg) ## Frequently Bought Together - 4ft Red Scuba Diving SMB, Open Bottom Surface Marker Buoy with Safety Sausage with 49ft Alloy Dive Reel and Double-Ended Bolt Clip for Underwater Sports-Gray - Scuba Choice 6" x 4" Diving Slate with Clip & Graphite Pencil – Waterproof Reusable Underwater Writing Pad for Scuba Diving, Snorkeling, Freediving and Diving Lessons - Boomerang Scuba Diving Retractable Gear Tethers with a Kevlar Cord and Universal End Fitting - Great for Scuba Diving Gauges, Flashlights, Cameras and More - Made in The USA --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/324875050-4ft-red-scuba-diving-open-bottom-surface-marker-buoy-smb](https://www.desertcart.co.uk/products/324875050-4ft-red-scuba-diving-open-bottom-surface-marker-buoy-smb) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-01*