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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🧪 Stir up innovation with Weewooday’s magnetic magic!

OPTIMAL SIZE QUANTITY - 16 pieces of 30mm bars ensure you never run out during critical experiments or projects.
UNIVERSAL COMPATIBILITY - Seamlessly pairs with all magnetic and heating stirrers across scientific and industrial labs.
VERSATILE LAB ESSENTIAL - Perfect for research, university labs, industrial and agricultural applications—mix like a pro every time.
PRECISION MIXING MASTERY - Engineered PTFE bars resist corrosion, abrasion, and high rotational forces for flawless lab results.
EFFORTLESS SMOOTH ROTATION - Cylindrical, burr-free design minimizes friction, delivering stable speed and zero deviation.

The Weewooday 16 Pieces PTFE Magnetic Mixer Stirrer Bars are precision-engineered 30mm cylindrical bars made from durable, heat-resistant PTFE and quality magnetic steel. Designed for stable, frictionless rotation, these bars resist corrosion and abrasion, making them ideal for diverse laboratory, industrial, and agricultural mixing applications. Compatible with all magnetic and heating stirrers, this bulk pack ensures consistent, reliable mixing performance for professional scientific environments.

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T**R

no comment

The product is used in our main lab

10.05.2021

M**O

All good

Can’t really go wrong all seems fine 👍

16.08.2022

J**S

Good

Just what I needed

16.10.2022

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TrustScore 4.5 | 7,300+ reviews

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Manufacturer	Weewooday
Part number	Weewooday-PTFE Magnetic Stirrer-01
Item Weight	100 g
Product Dimensions	11 x 11 x 1.6 cm; 100 g
Item model number	Weewooday-PTFE Magnetic Stirrer-01
Size	30 mm/ 1.18 Inch
Colour	white
Material	PTFE (Polytetrafluoroethylene)
Shape	Cylindrical
Item thickness	3E+1 Millimetres
Item Package Quantity	1
Number of Pieces	16
Batteries included?	No
Batteries Required?	No

Weewooday 16 Pieces PTFE Magnetic Mixer Stirrer Bar, White Color Stainless Steel Laboratory PTFE Stir Plate Bar, Mixing Plate Magnet Stick (30 mm/ 1.18 Inch)

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