OBT1231 Features: * Opening Size: 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in, 1 in, 1 1/8 in, 1 1/4 in * Opening Type: Open/Box * Measuring System: Inch * Price is for 1 Set Includes: * Includes: Pouch