Do these stand up to autoclave heat (~250 deg F)?

I put mine in a pressure cooker at 15 PSI which is about 250F. No problems.

is this an north/south pole magnet?

Yes, all magnets have north/south poles. It would be physically impossible for it not to.

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EQUTY BAYMERS PTFE Magnetic Stirrer Mixer Stir Bar,White Color,Laboratory Bar,Stir Plate Bar,Stir Plate Magnet,Stir Rod Magnetic 30MM (1.18 INCH) 4PCS -100081 4

EQUTY BAYMERS PTFE Magnetic Stirrer Mixer Stir Bar,White Color,Laboratory Bar,Stir Plate Bar,Stir Plate Magnet,Stir Rod Magnetic 30MM (1.18 INCH) 4PCS -100081 4

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Product ID: 274562321

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Details

Material
Brand
EQUTY BAYMERS
Shape
Cylindrical
Number of pieces
4
Manufacturer
EQUTY BAYMERS

🔥High-temp & corrosion resistant

🧪4 PTFE stir bars for versatile lab use

⚙️Smooth cylindrical design for frictionless rotation

Description

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

QUAD PACK PRECISION - Four 30mm PTFE magnetic stir bars to keep your experiments flowing without interruption.
OPTIMIZE YOUR WORKFLOW - Lightweight and compact design (only 18g) fits easily into any container, accelerating your liquid mixing and heating processes.
UNIVERSAL COMPATIBILITY - Works flawlessly with a wide range of magnetic and heating stirrers—perfect for labs, universities, and industrial research.
SEAMLESS STIRRING ACTION - Cylindrical shape with a smooth surface minimizes friction, ensuring ultra-smooth, consistent mixing every time.
DURABILITY MEETS PERFORMANCE - Crafted from premium PTFE and magnetic steel, engineered to resist heat, corrosion, and abrasion for long-lasting reliability.

The EQUTY BAYMERS PTFE Magnetic Stirrer Mixer Set includes four 30mm cylindrical stir bars made from durable PTFE and high-quality magnetic steel. Designed for high-temperature resistance and minimal friction, these bars ensure smooth, efficient mixing in various lab and industrial settings. Compatible with most magnetic and heating stirrers, this lightweight set enhances liquid mixing precision and reliability.

Specifications

Manufacturer	EQUTY BAYMERS
Part number	EQUTY BAYMERS-100081
Item Weight	18 g
Package Dimensions	14.71 x 12.6 x 0.89 cm; 18 g
Item model number	EQUTY BAYMERS-100081
Size	30MM (1.18 INCH) 4PCS
Material	Polytetrafluoroethylene
Shape	Cylindrical
Number Of Pieces	4
Batteries Included?	No
Batteries Required?	No

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Customer service was outstanding when I had questions about the product.

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EQUTY BAYMERS PTFE Magnetic Stirrer Mixer Stir Bar,White Color,Laboratory Bar,Stir Plate Bar,Stir Plate Magnet,Stir Rod Magnetic 30MM (1.18 INCH) 4PCS -100081 4

Details

Description

Specifications

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