Specifications: Made of sturdy metal material, rust-resistant and durable, not easy to break. Comes with screwdriver, D-rings and screws, the operation process is simple and effortless. Double holes picture hangers provide better steady and long lasting, nailed to the wall will not damage the wall. Can be used on photo frame, wedding, digital painting, cross stitch, picture frame,signs, framed photos, bulletin boards, framed posters. Type: Sawtooth Hanger Material: Alloy Quantity: 251Pcs/Set Features: with Storage Box, Durable, Easy to Install, Wide Use Double-sided Hanger Size: 45mm x 8mm/1.77" x 0.31" (Approx.) Box Size: 13.2cm x 7.2cm x 2.2cm/5.20" x 2.83" x 0.87" (Approx.) Notes: About 251pcs, due to manual counts, quantity might has 1 - 5pcs more or less. Hope you can understand, thank you. Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 50 x Double-sided Hangers 50 x D-Rings 150 x Flat Head Screws 1 x Screwdriver