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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Weewooday 24 Pieces PTFE Magnetic Mixer Stirrer Bar, White Color Stainless Steel Laboratory PTFE Stir Plate Bar, Mixing Plate Magnet Stick (35 Mm/ 1.38 Inch)

Weewooday 24 Pieces PTFE Magnetic Mixer Stirrer Bar, White Color Stainless Steel Laboratory PTFE Stir Plate Bar, Mixing Plate Magnet Stick (35 Mm/ 1.38 Inch)

Product ID: 415303104

Details

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

🔥Heat-resistant PTFE coating

🧲High-strength magnetic core

⚙️Smooth, burr-free rotation

€ 64.49

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Description

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

PRECISION MIXING - Cylindrical, smooth surface design ensures stable speed and zero deviation during stirring.
TRUSTED BY EXPERTS - Top-rated (#4 in Lab Stirrers) with 4.7-star reviews, a staple for scientific professionals.
BULK PACK ADVANTAGE - 24-piece set guarantees uninterrupted workflow and ready availability for any project scale.
UNMATCHED DURABILITY - Engineered with premium PTFE and stainless steel for corrosion and abrasion resistance.
VERSATILE COMPATIBILITY - Seamlessly pairs with all magnetic and heating stirrers across labs and industries.

The Weewooday 24 Pieces PTFE Magnetic Mixer Stirrer Bars are precision-engineered cylindrical magnets coated with heat-resistant, corrosion-proof PTFE. Measuring 35mm each, these stir bars deliver smooth, stable rotation with no surface burrs, making them ideal for scientific research, industrial labs, and academic settings. Compatible with all magnetic and heating stirrers, this bulk pack ensures consistent, reliable mixing performance trusted by thousands of professionals.

Specifications

ASIN	B093T4J2R5
Best Sellers Rank	#4,847 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Lab Stirrers
Brand Name	Weewooday
Color	white
Customer Reviews	4.7 4.7 out of 5 stars (1,685)
Item Dimensions L x W x Thickness	1.38"L x 1.38"W x 0.31"Th
Item Thickness	0.31 Inches
Manufacturer	Weewooday
Material Type	Polytetrafluoroethylene
Model Number	Weewooday-PTFE Magnetic Stirrer-01
Number of Pieces	24
Part Number	Weewooday-PTFE Magnetic Stirrer-01
Shape	Cylindrical
Unit Count	24 Count

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€ 64.49

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

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TrustScore 4.5 | 7,300+ reviews

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