Bolt Bag, Flame Resistant Canvas Bag with Double Bottom and Tunnel Loop, 9-Inch Klein Tools 5416TFR Made of flame-resistant No. 4 canvas Tunnel loop fits belts up to 3-Inches (76 mm) wide Meets the performance requirement of NFPA -701 Stitched and riveted with a double-bottom for added durability Includes holder for 1-Inch (25 mm) bull pins