Cast Iron plates are virtually indestructible. Plates come in two styles indicated by the diameter of the center hole. Standard size plates fit a 1" weight bar, and Olympic plates fit a 2" Olympic weight bar
Cast Iron Grip plates have a Hammertone gray finish, and their quad-grip design enables easy carrying
Rubber Grip plates are encased in durable heavy duty rubber that won't split or crack. They have a quad-grip design and an integrated metal sleeve in the 2" Olympic hole
Bumper plates are 100% solid resilient rubber. Bumper plates are all the same diameter with different thicknesses and have an Integrated metal sleeve.