This item is non-trace picture frame nail hooks, they are sturdy and premium, perfect size to help hide behind the picture frame. It is simple and effective way to hanging picture and photo frames, so don't hesitate, come to choose it. Features -Color: White. -Material: ABS. -Size: About 4.80X2.80X1.50cm/1.89X1.10X0.59in. - It is a nice solution for hanging many kinds of frames in small and medium size with minimal damage to walls. - The wall invisible nail hangers can easily meet your different requirements, useful and practical. - Not easy to deform and break, and has a , no trace design, and help to protect the wall from damage. - It provides enough extra strength and durability to hold your items, not easy to fall off, reliable and useful. - Easy to install, use a small hammer (not included) to nail gently the nails into the selected position of the wall, and no trace will be left. Package list: Hardwall Hangers