304 stainless steel material + ABS plastic stable camera safety This buckle is suitable for camera conversion straps whose strap holes are round holes. Triangular rings can be used for camera holes of other shapes, there is no that the can be fitted. If the hole area accounts for more than one-third of the triangular ring, the can no be installed, Helps a neck strap attach to the camera . Widely used for camera shoulder strap, lanyard, waist belt and so on. Premium material ensures maximum stability and durability for long lasting usage. Name: Camera Lug Ring Applicable lens model: For SLR camera Type: Camera Strap Ring Type: Camera Strap Conversion Ring color:Black + silver Material:Stainless steel+ABS Package Contents: 10 x Camera Lug Ring Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.