Can these be autoclaved?

I would have to assume so. They’re scientific instruments. Generally, with a few exceptions, there designed to be regularly sterilized. I regularly send mine through a pressure cooker at 15 PSI in liquid cultures

Could these be used with a sensor for an alarm system (Simplisafe)? I have double hung windows so need a slim magnet to put opposite the sensor. Thx

Probably, but I suspect it would be much easier to use one of these that's the size you want: https://www.amazon.com/s?k=neodymium+disc+magnets&crid=3RBE9SKKGYW9W&sprefix=Neodyn%2Caps%2C235&ref=nb_sb_ss_ts-doa-p_5_6

is there any possibilities that these could degrade and leak into the water? any easy way to see it? thanks

There is nothing to leak. Inside is a solid magnet. It's possible that after using them a long time, friction could wear out the plastic coating, but that will probably take years and you'll see it slowly degrading. Just take a quick glance before you use them and if they look like they are in good condition, they are.

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White Magnetic Mixer Stirrer Bar

Product ID: 277320586

Details

Brand
Weewooday
Color
white
Material
Product Dimensions
0.31"L x x
Shape
Cylindrical

🧲Strong magnetic force for stable stirring

⚙️Smooth cylindrical design reduces friction

🛡️PTFE coating resists corrosion & abrasion

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Description

🧪 Stir Smarter, Not Harder — Elevate Your Lab Game!

DURABLE PTFE COATING - Resists chemical corrosion and abrasion to ensure long-lasting performance.
LAB READY MULTI PACK - Four 30mm bars included to handle diverse container sizes and volumes.
VERSATILE COMPATIBILITY - Perfectly pairs with a wide range of magnetic stirrers and heating plates.
PRECISION ENGINEERED SHAPE - Smooth, pill-shaped design minimizes friction for ultra-quiet operation.
UNMATCHED MAGNETIC STABILITY - Engineered for consistent, wobble-free stirring even at high speeds.

The Weewooday 4 Pieces PTFE Magnetic Stir Bar set features four 30mm cylindrical bars crafted from durable PTFE and strong magnetic steel. Designed for professional labs and research environments, these stir bars offer corrosion resistance, abrasion durability, and stable, quiet rotation compatible with most magnetic stirrers. Ideal for precise mixing in scientific, industrial, and agricultural applications.

Specifications

ASIN	B08P3J9T43
Best Sellers Rank	#7,377 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Lab Stirrer Bars
Brand Name	Weewooday
Color	white
Customer Reviews	4.7 4.7 out of 5 stars (1,716)
Item Dimensions L x W x Thickness	0.31"L x 0.31"W x 1.18"Th
Item Highlight	Stainless Steel Laboratory Ptfe Stirrer Plate Bar, Pill-shaped Mixing Plate Magnetic Stick, Laboratory Use, White Color
Item Thickness	30 millimeters
Item Weight	3.84 ounces
Manufacturer	Weewooday
Material Type	Polytetrafluoroethylene
Model Number	Weewooday-PTFE Magnetic Stirrer-01
Number of Items	16
Number of Pieces	16
Part Number	Weewooday-PTFE Magnetic Stirrer-01
Shape	Cylindrical
Unit Count	1 Count

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£28.91

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UK.

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Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

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