The lock shaft, push-pull button, and built-in spring are all made of marine-grade stainless steel hardware. The flat handle is made of aluminum alloy with an eye-catching black tone and is made with a special coating process to strong and . [Application]: This quick-release positioning pin has a handle that enhances maneuverability and is widely used in stage audio, aviation manufacturing, gym replacement parts, boat deck hinges, bimini tops, mechanical engineering, etc. [Advantages]: Quick ball lock pin provides a secure connection. You can easily insert, release or lock the pin by hand. It also comes with a lanyard to prevent loss. [Installation]: the handle button, retract the steel ball at the pin head, and slide the quick release pin into the hole. When the button is released, the steel ball reappears, holding the pin in place. size: 6mm x 25mm Material: metal colour: silver Package Contents: 4 x Ball Lock Pins 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.