HVAC/R Refrigerant Tank & Utility Backpack | Should strap is designed and tested to hold up to 30 lbs | Designed to last with heavy duty nylon thread and puncture and abrasion resistant nylon fabric | 71187 PKG OF 4 WASHERS^The item is used for Hardware, Fasteners & Hooks^This product manufactured in United States | 71187 PKG OF 4 WASHERS^The item is used for Hardware, Fasteners & Hooks^This product manufactured in United States