This ergonomically shaped puck has been re-introduced in our toughest formula! Slightly twisted to fit your palms perfectly for improved dexterity, they are right and left specific. Designed by slide master James West, these pucks are 3/8" thick, 4" long, 2.5" wide. Made from self-lubricating recycled UHMW, the Velcro is heat bonded on. Price is for 2 pucks.