Features:One piece very well finished screw with high quality anti-skid rubber pad. A new way to put your neck strap on your camera. You will be able to put your existing neck strap through the screw and install it on the tripod hole on the bottom of your camera without any modifications. You may also may use of some other key-ring attachments or hiking/climbing gears to carry your camera in a new way. With using this screw you can quickly put on or off your camera strap without wasting time to mess around the strap and its parts. Try it and feel the different.Specifications:Precision made 1/4" screwsTotal length including base: 20mmapprox.Head diameter(including Ring ): 20mmCircle Ring diameter: 10mm(Max)Package: 1 x Screw