Standard Pack = 1 piece(s). 300 Piece Snap Ring Assortment Contains:; Internal:; (15) 5/16 IN; (20) 3/8 IN; (15) 7/16 IN; (15) 15/32 IN; (25) 3/4 IN; (20) 7/8 IN; External:; (20) 1/8 IN; (10) 5/32 IN; (25) 1/4 IN; (15) 5/16 IN; (25) 1/2 IN; (15) 9/16 IN; (20) 5/8 IN; (15) 13/16 IN;