For use on selectorized weight stacks. Allows you to increase resistance in smaller increments. No need to jump in 10, 15 or 20 lb. increments any longer. Features thick, protective virgin rubber molded over a solid steel core for a lifetime of trouble-free use. Will not slip, slide or fall off.
I have been awaiting this item for a long time. It gives me the incremental amount I need for certain exercises. Have been using it extensively.