Feature: Screw: This is one of the part of the quick sling strap we are selling, it can be the replacement once your qiuck sling strap parts broken down. Surface polished, compact and durable, rust resistant. Non-slip rubber washers, greatly enhance the contact with the bottom of the camera, more secure and more reliable. The screw is suitable for most DSLR/SLR camreas/Mini DV Camcorder/DC with standard 1/4' tripod socket. Hook: High strength steel coated in black nickel coupler. Smooth swivel with a positive lock to ensure the safety of the camera or lens. It's constructed to work perfectly with most camera bags and neck straps. It's strong, swivels smoothly, and locks to ensure the safety of your camera and your piece of mind. The hook will slide your camera smoothly up the strap for that legendary Rapid speed. Suitable for quick sling strap and camera bag. 1/4' Screw Connecting Adapter F Camera/Camcorder shoulder Quick sling strap. Screw Connecting Hook only, other accessories demo in the picture is not included Specifications: Item Type: Screw Connecting Hook Material: Metal Size: Standard Size Color: As shown Attachment Method: Locks to strap Type: A: Screw, B: Screw+Hook Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. Package Includes: Type A: 1 x Screw Type B: 1 x Screw 1 x Hook