Much like the onnit star wars/primal kettlebells, actual performance varies based on exercise. Works ok for swings, everything else is hit or miss but they look cool as hell at that is also important at Mike's Gym.
A 100% Must have for the Fringe Sport Mammoth Belt Squat. You will usually find it bundled with the unit so it's almost always thrown in but please do yourself a favor and confirm that you are getting it because it really is a must have.
Thought this was a gimmick that I fell for on instagram and you know what...they are kinda awesome. Has really helped improve my grip strength and has helped with my elbow rehab.