(25 Pieces) PGN - 1/2 Inch (0.5) Precision Chrome Steel Bearing Balls G25

Perfect for science experiments!

Exactly what I needed for my project.

Good product

Very nice .50 steel balls. Seem to be ideal sling shot ammo and ball bearings. I think theese resist rust more than some steel ammo.

We use them in our after school program to test the viability of our engineering projects.

These bearings are top quality and will be used in prototyping a wooden marble machine! The vendor delivered promptly, and Im sure I will order more in the future!

Excellent quality.

Good

Exactly what I ordered. But I I am a dumb dum and ordered the wrong size. Lol

Just sand down a bit the hole where the ball goes in the cylinder, fairly easy.