I got these as a gift over a decade ago, and they are nice--grippy, firm, durable, and a practical way to train your grip. Admittedly, since my goals are primarily oriented towards bodybuilding, I haven't had the opportunity to use them much, because I don't want my grip to fail before target muscle groups reach exhaustion. That said, I recently discovered that you can insert them into the loop of a daisy chain and it creates a makeshift D-handle. The larger surface area makes them really comfortable for tricep pressdowns.
Performance
Value
Build Quality