It's rubber, it's a ball and you can slam it into the ground.

Never dropped them and not sure how they'd hold up if I did.

More challenging than the iron minds rolling thunder. On the slick side so that makes it challenging.

It works for what it is. Did manage to get a small tear in it but doesn't effect functionality.

It's an axle. A bit on the slick side with the finish so chalk up. Also can feel it compress a little bit under my grip.

Good tool if you know how to use it. Misgroove and you might have a bad time.

Good for the "weight is weight" crowd. They've held up to several heavy deadlifts.

Great way to train blobs. Built as a half 100 so it's on the thicker side making it more challenging.