1. Nylon material. Strong metal hook. Adjustable metal buckle and removable soft strap pad. Fabric lining. Buckle closure. 2. Long replacement strap, suitable for those bags that are missing or damaged, such as luggage computer bags, laptop cases, outdoor sports bags, travel bags, messenger bags, and laptop double-sided camera bags. 3. Adjustable length: adjust from 28.8" to 50.4" (with 2 metal hooks), can be adjusted according to needs. 4. Soft comfortable shoulder bag: shoulder pad width 2.9 inches, pad length 8.1 inches, with sufficient padding for shoulders, more comfortable to carry the bag for a long time. 5. Sturdy hook: by making metal hook clips that strengthen the version equipment, easy to attach and sturdy, strong enough to carry a heavy pack. 6. Nylon material, strong, relieves shoulder fatigue.