Heavy duty and more stronger, made with high quality material.Frame back hanger for wood picture frames. Two screw holes allow for each d-ring hanger to be securely attached to a wood picture frame or wood project.If you want to hang some pictures on your walls, use these photo frame hangers to ensure that the frames will not fall if someone touches them.The smartly designed D-ring hook of the picture hangers will keep your picture frame in place at all times.Size: Approx. 35 x 22mm/1.38 x 0.87inch, Hole Diameter: 4mm/0.16inchPackage Includes:25 Pieces Photo Frame Hooks (Without Screws)