A simple way to hanging picture and photo frames which didn't have any way of hanging them. Great choice of picture framing kits for a variety of sizes of items. The ring frame hanging hooks are sturdy and good quality, perfect size to help hide behind the frame.Features- Color: Assorted color.- Material: Iron.- Size: 17.00 x 10.00 x 2.50cm/ 6.68 x 3.93 x 0.98 inch.- Picture hanging hooks are made of durable iron. Picture hanging set is sturdy and rustproof.- Simply screw into picture frame, easy to install and remove by screwdriver. Picture frame hooks not damage your frame.- Different heavy duty picture hooks in size and type is suitable for photo frame, cross-stitch, artworks, exhibition paintings, canvas, mirror, framed maps in home, office and school.- Picture hanging tool is packed in a plastic organizer box with multiple partitions to keep each model separate.- The picture hooks designed for hard walls is easy to store and prevent lost.