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🧪 Stir Smarter, Not Harder — Elevate Your Lab Game!
The Weewooday 16 Pieces PTFE Magnetic Mixer Stirrer Bars are precision-engineered cylindrical stir bars coated with durable PTFE, designed to resist high temperatures, corrosion, and abrasion. Each 30mm bar features a strong magnetic steel core for stable, smooth rotation, compatible with most magnetic and heating stirrers. Ideal for scientific research, industrial, and agricultural labs, this bulk set delivers professional-grade mixing reliability favored by thousands of users.






| ASIN | B08P3J9T43 |
| Best Sellers Rank | #5,316 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab Stirrer Bars |
| Brand | Weewooday |
| Brand Name | Weewooday |
| Color | white |
| Customer Reviews | 4.7 out of 5 stars 1,683 Reviews |
| Item Dimensions L x W x Thickness | 0.31"L x 0.31"W x 1.18"Th |
| Item Thickness | 30 Millimeters |
| Item Weight | 0.25 Pounds |
| Manufacturer | Weewooday |
| Material | Polytetrafluoroethylene |
| Material Type | Polytetrafluoroethylene |
| Model Number | Weewooday-PTFE Magnetic Stirrer-01 |
| Number of Pieces | 16 |
| Part Number | Weewooday-PTFE Magnetic Stirrer-01 |
| Product Dimensions | 0.31"L x 0.31"W x 1.18"Th |
| Shape | Cylindrical |
| Unit Count | 1.0 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.
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.
A**E
So far, So good
Works well. I'm not experiencing problems like some other users. No splitting, or uneven spinning.
M**T
Reasonabley Priced, Exactly as Advertised
Exactly as advertised.
M**L
Great value
Great value
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.
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.
L**L
Work great
Product arrived quickly and work great!
A**N
Nice product
Good product, prompt delivery!
G**N
Works great
No problem
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
T**Z
DECENT VALUE
Does the job for magnetic stirring at a decent price. Handles autoclaving temp 250C no prob.
Trustpilot
1 day ago
2 weeks ago