Brand new and high quality.Made of plastic material, the foot pad is durable and wear-resistant.It can be easily install on the bottom of the laptop for anti-slip.Convenient and practical, for Pro 13inch A1278 / 15inch A1286 / 17inch A1297.How to use:Remove the bottom case and wipe the dropped with a dry cloth to remove the dust, but not wet.Heat the dropped with a blow dryer, when it is hotted, stick on the foot directly.On until it is cooling, then tighten the bottom case, toast the cylinder with a lighter, after dissolving, quickly press to let it stuck in the bottom case.Type: Laptop Feet PadProduct name: Bottom Case screw + Screwdriver + FeetModel: For Pro 13inch A1278 / 15inch A1286 / 17inch A1297Laptop Size: 13 inch / 15 inch / 17 inchColour:black + silverMaterial:Plastic + MetalPackage Contents:8 x rubber feet20 x screw2 x screwdriverOnly 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.