The Cose Metal Buckle with Rectangular Slider, 20mm in silver, reference 763145, is a rectangular frame-shaped metal buckle used to adjust the length of straps and belts without a locking function, only a sliding mechanism. This alternative reference corresponds to a different buckle model within the same 20mm silver range, maintaining the same robustness and ease of adjustment. It is an essential accessory for those who make bags, backpacks, and adjustable belts with a more robust finish than conventional plastic.