Customized shoulder straps-exclusively purchased for small travel backpacks (one on each side, two in total)

This is an add-on product and must be ordered together with the "Small Travel Backpack", or if you have purchased a "Small Travel Backpack" before. In addition, the shoulder strap can be used by hooking it to the ring buckle at the back of the backpack. If you want to install additional shoulder straps, you must first cut off the original shoulder straps on the backpack with scissors. After cutting off the shoulder straps that were originally on the backpack, If you need to carry it on your back, install 2 shoulder straps on the left and right buckles (including the upper and lower ends), and install it on a total of 4 buckles. If you need to wear it on one shoulder, install one shoulder strap on the left and right buckles at the upper end, so that it can be attached to 2 buckles in total. With only one shoulder strap attached, the length may be insufficient if carried cross-body, so please avoid carrying it cross-body.