1/4 inch (6 mm) Metal Stamping Kit | 36pc Number and Capital Letter Punch Set with 4" x 4" Bench Block and Ball Pein Hammer Kit Contains: (1) 36 piece  (6mm) Letter and Number Stamp Set (1) Ball Pein Hammer (1) Steel Bench Block Punch Set Includes Upper Case Letters A-Z, Numbers 0-8 (6 Turned Upside-down is 9) and & Symbol Ball Pein Hammer | 5/8" and 3/4" Striking Faces | 6.6 oz Overall Weight | 5 - 7/8" Overall Length Vanadium Steel Bench Block | Weight: 3.175 lbs | Dimensions: 4 x 4 x 3/4 inch | Mirror Polished Brand: Long Tail Industry | Part No: PNCHKIT146MM | UPC: 851794006774