Features: Wall plug is crafted from plastic material, which is not easy to break. Self-tapping screws is crafted from metal material, corrosion-resistant and antirust, not easily to break or bend. Equipped with a clear plastic storage box, it can neatly and clearly store screws and plastic Anchors of various size inside, makings it easily to find what you need at glance. Suitable for use on plasterboard, concrete wall, brick wall, plaster, wood, brick wall. Used to hangs and fix glasses, photo frame, picture decorations, curtain rod, decorative paintings, towel racks, lighting, floatings shelves and other items. Easily to Use: First drill holes in wall. Insert the drywalls Anchors into the hole. Then screw wall screws into the Anchors shape. The installation of each task is very quickly and simple . Wall Anchors and Screw set is available in 11 most practical size. With these most commonly used drywalls Anchors and screw size, you can find right one to handling your installation project with ease. Specifications: Material: Plastic and Steels Size: As Show In Picture Package Includes: 20Pcs #6-25 20Pcs #6-30 20Pcs #6-40 20Pcs #8-40 20Pcs 13-42 20Pcs #6-30 20Pcs #6-26 20Pcs #6-25 20Pcs #8-38 20Pcs #8-60 20Pcs #8-80 note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.