I've played with the 53 lb. The design is wrong as can be. Sad after all the lip service in their ad copy concerning ergonomics, testing and etc. If you hold this thing correctly in the rack or overhead the abrupt corner of the back of the "head" digs in to the back of your wrist and the long axis of the "head" sticks out almost parallel to the ground instead of hanging down. I meant to take a pic of this last summer when I got a chance to handle one. People with larger or smaller hands than mine had the same problem. Too bad, so much work to put these things into production, but nobody bothered to find out how to lift kettlebells correctly. They do look super cool.