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🧪 Stir Smarter, Not Harder — Elevate Your Lab Game with Weewooday!
The Weewooday 4 Pieces PTFE Magnetic Stir Bar set features 30mm cylindrical bars with durable PTFE coating and strong magnetic cores. Designed for stable, precise stirring without deviation, these bars resist corrosion and abrasion, making them ideal for scientific research, industrial, and academic labs. Compatible with most magnetic and heating stirrers, this value pack ensures reliable, contaminant-free mixing for professional-grade results.










| ASIN | B08P3JKLSJ |
| Best Sellers Rank | #5,664 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Lab Stirrers, Mixers & Accessories |
| Brand | Weewooday |
| Brand Name | Weewooday |
| Color | white |
| Customer Reviews | 4.7 out of 5 stars 1,707 Reviews |
| Item Dimensions L x W x Thickness | 0.31"W x 0.31"Th |
| Item Highlight | Stainless Steel Laboratory Ptfe Stirrer Plate Bar, Pill-shaped Mixing Plate Magnetic Stick, Laboratory Use, White Color |
| Item Thickness | 0.31 inches |
| Manufacturer | Weewooday |
| Material | Polytetrafluoroethylene |
| Material Type | Polytetrafluoroethylene |
| Model Number | Weewooday-PTFE Magnetic Stirrer-01 |
| Number of Items | 4 |
| Number of Pieces | 4 |
| Part Number | Weewooday-PTFE Magnetic Stirrer-01 |
| Product Dimensions | 0.31"W x 0.31"Th |
| Shape | Cylindrical |
| Unit Count | 4 Count |
X**A
Perfect
These little stir bars work perfectly, they spin quietly, stay centered, and the PTFE coating feels durable. The different sizes make it easy to match whatever beaker or container you’re using. Great value for a reliable set.
G**E
I use alot would buy again
Works great
J**T
Stirs 32oz Liquid Culture easy peasy.
They are large enough to stir 32oz LCs on low to medium. They also work with smaller jars (1pint). They are strongly magnetic and the coating holds up to daily stirring. I havent had any issues with Sterilizing them or the coating pitting. They work well with my basic small stir plate.
G**N
Excellent
They work great 👍🏻
M**L
Great value
Great value
A**E
So far, So good
Works well. I'm not experiencing problems like some other users. No splitting, or uneven spinning.
D**E
As described
These are the exact size I was looking for, I only wish the magnets were a bit stronger. But these will do for now. Thank you.
S**E
Have used for 5+ years been using for mycology Liquid Culture prop. in 1/2 gal ball jars.
These work great, expensive, yet 'renewably reusable', and also just work. I use these in 1/2 gal ball liquid culture jars, and with simple 28 dollar stir plates. With the right setting, these kick up and make a vortex in 1-2 seconds, and don't get lost or tossed on my plates. 1" to 1.125" is the right for this application. These work fine and are reusable, or giftable, or tossable.
A**N
Nice product
Good product, prompt delivery!
A**R
Perfectly sized
Perfect size and works very well
T**Z
DECENT VALUE
Does the job for magnetic stirring at a decent price. Handles autoclaving temp 250C no prob.
T**R
no comment
The product is used in our main lab
P**A
Buen articulo
El tamaño es adecuado para agitar, sin ser demasiado grandes o pequeños. Son totalmente lisos
Trustpilot
3 weeks ago
3 days ago