The Sealife Stainless Steel 1/4-20 Hinged D-Ring screws into any standard tripod mount for attaching a lanyard or clip. Ideal for attaching lanyard to Flex-Connect Handle, Tray, Micro HD or any device with a 1/4-20 tripod mount. The Hinged D-Ring is made from corrosion resistant 316-stainless steel and makes a great save-a-dive-kit item. D-Ring Hinge feature allows you to collapse the D-Ring flush when not attached to lanyard or clip.