Ultimate Arms Gear SAF-T-BLOK 70122 Glock LH Left Hand Safety Block Black POST After 1998 Glock Models 17 19 20 21 22 23 24 29 30 31 32 34 35 37 38 39 41 3/32 Punch Armorers Gunsmith Tool Package Includes: SAF-T-BLOK 70122 + Ultimate Arms Gear Pro Disassembly 3/32 Pin Punch Armorers Gunsmith Tool Safety Device to Protect from Accidental Discharge. Snaps In Easily and Stays Firmly In Place. Ejects Quickly with Finger. Left Handed Design. Ultimate Arms Gear Pro Disassembly 3/32 Punch Armorers Gunsmith Tool Designed to Punch Pins. Features a Polymer Handle and Steel Tip for an Ultra Durable High End Tool. Diameter is 3/32 of an inch or 2.5mm.