1、Anti Shake and Anti Slip: Built in anti shake design ensures stable locking without any movement, easy unlocking and locking without any wobble or play. Anti slip rubber pads on both sides for stability. 2、Easy Assembly: Align the quick release plate with the V groove and slide it in directly. Once inserted, it locks securely without the need to push any buttons. Push the quick release button to the left to unlock the shoulder strap clamp. Slide the top cover to complete disassembly. 3、Quick Clamping: Wide clamping range of 0‑60mm width, 1‑9mm thickness backpack straps. Rotary knob for faster and more convenient installation, secure locking without any movement. 4、Top Quick Release Plate for Installing Positioning Pins: Can be equipped with D3.0MM or D5.0MM positioning pins for further stabilization and prevention of rotation, convenient for fixing on the shoulder. 5、Rich Expansion: The top of the base plate can be replaced with various expansion accessories of your choice, such as a triple card slot quick release plate, allowing for a sporty installation experience.