Fit for picture and photo frame or -stitches The double hole D-ring hanger is with metal Theses double-hole D-Ring hangers are easy to install with screws The frame hanger hook, picture hanging , and mirror , are very useful color: Silver Material: Metal Weight: 181g size: 33x23cm Screw length: 12cm Double hole with screws allows for the ring hanger to be attached securely to a wooden picture frame or wooden project These picture frame hanging hooks are fit for wooden frames and -stitches Picture hangers and hardware for hanging a picture frame, including D-rings, screw rings, strap hangers, key rings, slotted picture hangers etc Package Contents: 25 * D Ring Picture Hangers Only the above package content, other products are not included. Note: Light 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.