Plastic Buckle 1-1/2 Inch Side Release Buckle Black for Webbing, Fasteners Strap (4 PCS,Black) Package included: 4PCS High Quality Side Release Buckles. Compatible with 1.5"(38mm) webbing and straps. Made of High Quality Polypropylene, Strength and Durability. This buckle can be used for collars, belts, harnesses, backpacks, etc.