Marine grade stainless steel construction.Very strong and durable.Can be used with confidence. Good performance.Superior corrosion resistance. Used for creating fending points around boats and can also be used as a multi use hook. Easy to install and easy to remove.Easy to use. Commonly used as attachment points for fenders, but can also be used for hoods, canopies and other low-load. Name:Marine Spring Hook Capacity: Fending Snap Hook with Safety Catch. Item : Marine Spring Locked Hook Applications: accessories Surface: High Polished Colour:silver Material:Stainless steel Size:30 x 50 x 40mm Package Contents: 10 * Boat Fending Hooks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.