You are purchasing one backpack strap
Product features
1. Keeps Shoulder Straps Securely in Place .That gives your hand free.
2. Compatible with most backpacks with removable/adjustable shoulder straps
3. Manufactured from rot resistant 38 mm (1.5 inch)polypropylene webbing
4. One buckle ,two slides, two web dominators
5. Easily adjust. No sewing required.
6. If it is too long for you , please cut it and reseal ends with flame