I stored this item almost unused after purchasing it, so it's practically new. This is a tool that allows you to attach and detach a single-lens reflex camera to your waist belt. You can easily remove the camera by sliding the lever. You can attach it by inserting the ball-shaped attachment into the tripod hole of your single-lens reflex camera. You can tighten it by inserting an L-shaped wrench into the hole of the attachment and turning it. * Available for immediate purchase.