Package contents: you will receive 4 sets of our products, including 8 pieces stainless steel picture hangers, 16 pieces of short 4 x 0.79 inch screws, 16 pieces of 4 x 1.96 inch long screws, 32 pieces expansion tubes, sufficient quantity to meet your different needs; perfect for photo frames, not suitable for many large furniture, please confirm before purchase How to install: designed with countersunk holes and symmetrical screw holes can make the installation quicker and easier with no scratching your hands, you just need to use the long screw to fix one clip with the protrusion faced up, then use the short screw to fix the other clip to the furniture with the protrusion faced down, finally install them interlockingly, no too difficult and easy to install Sturdy material: the picture hangers are made of quality stainless steel material, which is sturdy and anti-rust, and long-lasting, features exquisite workmanship and will you long time, you can feel relieved to use it Wide range of uses: furniture embedded mounting brackets can be applied for objects, to fix small furniture such as photo frames, artworks, clocks, mirrors, exhibition paintings, posters, etc., not suitable for large furniture such as shelves, please confirm the use before buying Color: silver : Z Shaped clip: Material: stainless steel Dimension: 54 x 30 mm/ 2.12 x 1.18 inch Hole diameter: 4.5 mm/ 0.177 inch Short screw: Material: steel Diameter: 4 mm/ 0.16 inch Length: 20 mm /0.79 inch Long screw: Material: steel Diameter: 4 mm/ 0.16 inch Length: 50 mm/ 1.96 inch Package Contents: 8 x Z shaped clips (large) 16 x Short screws 16 x Long screws 32 x plastic expansion tubes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.