Features: 1Steel Material: Made of carbon steel material for high durability anchors can be expanded on two opposing sides as you tighten the screw increasing holding power. 2Screw in Design: The expansion is more complete the screw in design which is more reasonable simple for users to fixing decorations. 3No Holes Left: Expansion anchor allows easily remove screw and item leaving anchor in wall for reuse and no hole left in the wall after use. 4Suitable Range: Suitable for shelf cabinet decoration curtains fixing calligraphy hanging wall cabinets and picture frame also for other house decoration. 5Package Content: The package contains only 40 screws and 40 expansion anchors other accessories and tools need to be prepared by yourself. Specification: Item Type: Self Drilling Anchors ScrewsMaterial: Carbon SteelApplication: For Shelf Cabinet Decorative Curtain Fixing Calligraphy Hanging Wall CabinetsWeight: Approx.133g/4.7oz Package List: 40 x Expansion Tube40 x Screw