--- product_id: 4735799 title: "Black 2x4x6 Fully Functional Cuboid by Calvin's Puzzle" brand: "calvins puzzle" price: "£0.93" currency: GBP in_stock: false reviews_count: 8 url: https://www.desertcart.co.uk/products/4735799-black-2x4x6-fully-functional-cuboid-by-calvins-puzzle store_origin: GB region: United Kingdom --- # Shape Shifting Advanced Difficulty Caution: Popping Risk Black 2x4x6 Fully Functional Cuboid by Calvin's Puzzle **Brand:** calvins puzzle **Price:** £0.93 **Availability:** ❌ Out of Stock ## Summary > 🧠 Unlock the Puzzle Master Within! ## Quick Answers - **What is this?** Black 2x4x6 Fully Functional Cuboid by Calvin's Puzzle by calvins puzzle - **How much does it cost?** £0.93 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/4735799-black-2x4x6-fully-functional-cuboid-by-calvins-puzzle) ## Best For - calvins puzzle enthusiasts ## Why This Product - Trusted calvins puzzle brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Innovative Design:** Utilizes the same mechanism as the 4x4x6 for a unique solving experience. - • **Durability Warning:** Handle with care to avoid popping; not for speed cubing enthusiasts. - • **Shape-Shifting Fun:** Transform and twist your way through complex patterns. - • **Challenge Your Mind:** Perfect for advanced cuboid solvers seeking a new level of difficulty. - • **Customizable Aesthetics:** Stickers may need gluing for a polished look—make it your own! ## Overview The Black 2x4x6 Fully Functional Cuboid by Calvin's Puzzle is a challenging and innovative puzzle designed for advanced solvers. With its unique shape-shifting capabilities and a mechanism similar to the 4x4x6, this cuboid offers a fresh twist on traditional puzzles. However, it requires careful handling to prevent popping and may need some customization for optimal aesthetics. ## Description Difficulty: Hard, for advance cuboid solver Fully Functional Cuboid, shape shift Use the same mechanism as the 4x4x6, it's basically a shave down version of it Not for speed cube, can pop if the cube isn't aligned while you turn Some bubble on the stickers because of the curve surface, you may need to glue it down ## Features - Difficulty: Hard, for advance cuboid solver - Fully Functional Cuboid, shape shift Use the same mechanism as the 4x4x6, it's basically a shave down version of it - Not for speed cube, can pop if the cube isn't aligned while you turn - Some bubble on the stickers because of the curve surface, you may need to glue it down ## Images ![Black 2x4x6 Fully Functional Cuboid by Calvin's Puzzle - Image 1](https://m.media-amazon.com/images/I/51G7p2H6XbL.jpg) ![Black 2x4x6 Fully Functional Cuboid by Calvin's Puzzle - Image 2](https://m.media-amazon.com/images/I/51YeP973yYL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Favorite puzzle in my collection *by H***E on December 13, 2017* The media could not be loaded. This is a very well put together puzzle. It has quickly become my favorite puzzle in my collection. It turns very well. It doesn't fall apart in my hands at all, so I don't know what some of these other reviews are talking about. It does have a slight quirk with a couple of the corner pieces: some of them will slide off. It seems that the pieces are nothing more than caps for shorter pieces. It isn't an issue, but you could always mess with someone who wants to play with this puzzle. Overall, I love the build quality and puzzle design and would recommend this puzzle to anyone who has become proficient with other puzzles and would like a new challenge. Also, don't give this to a twelve-year-old. ### ⭐ This product is very cheaply made. My 12 year ... *by J***L on December 17, 2015* This product is very cheaply made. My 12 year old son was playing with and and dropped it (slipped out of his hands) and crashed into a million pieces. We re ordered it and the pieces fell apart in his hands. ### ⭐⭐⭐ Fun cube... but the stickers suck *by A***R on September 7, 2016* Good, but the stickers are less than desirable. I love the cube, but the stickers require a little TLC to keep them from coming off. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/4735799-black-2x4x6-fully-functional-cuboid-by-calvins-puzzle](https://www.desertcart.co.uk/products/4735799-black-2x4x6-fully-functional-cuboid-by-calvins-puzzle) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*