Specification: Package includes: 20 Pcs Frame turn buckle + 20 Pcs screws Material: Plastic Length: 24mm/0.94" Width: 10mm/0.39" Mounting Hole Diameter: 4mm/0.16" Color: White Description: The picture hanging buttons are made of plastic material, not easy to break or deform. The picture frame turn button can be applied on many occasions, perfect for photo and picture frame hanging use, can be used to hang photo frames, hanging pictures, digital paintings, drawings and posters, decorative paintings, and other pendants. Use it in your home, exhibition, office, or anywhere you need to. Convenient for you to make a new frame and picture replace. Note: The screw should be perpendicular to the frame surface when you are mounting.