IKN 2pcs Guitar Skidproof Strap Locks Big Round Head Straplocks Metal Black for Acoustic Electric Bass Replacement High quality flat head straplock. Reliable fixed screw. Safety Buckle. Features anti-slip function, prevents guitar smash to the ground. Fast assembly and Quick & Easy release;Easy to install, convenient to use. Material: Metal,Color:Black. Package Included: 2 x Strap Locks.