The primary function of a backpack buckle is to ensure the safety of the items inside the backpack and prevent accidental opening during movement, resulting in loss or damage of items. An excellent backpack buckle design should be easy for users to operate with one hand, and both opening and closing should be fast and smooth to meet the needs of different scenarios. As a frequently used component on backpacks, backpack buckles must have excellent durability, be able to withstand certain tension and wear, and ensure stability under long-term use.