Frame Hanger Set: Includes 100 pieces sawtooth hangers (45 x 8 mm) with 200 pieces screws (10 mm length), a plastic box to help you choose and store easily. Material: Metal. Easy to Assemble: Just use Phillips screws to fix the picture hooks on the frame, invisible appearance, easy to remove and reusable. When removed, there are no marks on the walls or frames except for two small dots, without damaging the wall. Upgrade Your Home: Hang beautiful artwork on the wall, beautify the children's room and add elegance to your living room/office. Double-hole picture hooks, more stable and sturdy, sawtooth design, easy to move the frame from left to right, create a beautiful decoration on the wall. Widely Used: These metal hooks are very suitable for hanging photos, posters, framed postcards, paintings, mirrors, wall clocks, framed wooden products, pallets, cross stitch, etc.