Plastic Buckle v2: (2x the Strength)

backpack buckles buckle buckles FDM fdm 3d printing fdm friendly FDM printing improved improved design nosupport nosupports replacement replacements replacement part replacement parts strap version 2 backpack buckles buckle buckles FDM fdm 3d printing fdm friendly FDM printing improved improved design nosupport nosupports replacement replacements replacement part replacement parts strap version 2