







⚙️ Spin smarter, not harder — upgrade your fidget game today!
This 16-pack replacement set includes MR137 high-speed chrome steel ball bearings (13mm outer diameter, 7mm inner diameter, 4mm thickness) with single-side seals to protect against dust and moisture. Each bearing is precision polished for smooth, durable performance, paired with 16 pairs of black ABS plastic caps for easy installation. Ideal for fidget spinner repairs, upgrades, and custom DIY projects, this set delivers professional-grade quality to keep your spinner spinning longer and faster.
H**E
Works great
These work great and are so much fun to put in your own spinner.
J**L
Gift/party ideas
The media could not be loaded. These were cute little fidget spinners. Great for kids and the perfect size for what I used them for. Very easy for kids to use. My 3 year old had no problem with it and it is not flimsy like some little toys you get. It spins as it should and lights up. The kids enjoyed them. They functioned liked they should have. Would definitely buy these again.
M**.
Good
Seems like they'll work.I thought I ordered the ones with the mold. So now waiting on molds.
A**R
Cool
Works good for the money it's a good deal the only issue I had was the mold had to be stopped from rising up while curing but no big deal nice product I'm happy plus sinners look nice and work well.
J**Z
Ok could be better
It works ok… needs some improvements like make the mold thicker so it fits better on the bearings
D**.
Poorly designed
They're alright, but I had to Dremel out the center so the bearings fit. I shouldn't have to alter it to make it work.
S**
Missing a piece
I looked all over to find extra bearings to make more spinners and I’m missing one piece with the post. So I got 16 pieces with the hole, 16 metal bearings, and only 15 with the post. I have also ordered two different sets with the spinner molds and each time I was missing a piece with the post. So the first set I could only make 9 and not 10. Same with the second set. Then I didn’t get this set with 16, that turned out to be 15 in time for my last event of the year. How it got lost in my own state, I will never understand! With the exception of these issues, the molds themselves are great.
K**S
Spinner
These are a little but cheaply made they do there job though
Trustpilot
3 weeks ago
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