Ensure your wall-mounted items stay securely in place with our stainless steel expansion screws and white plastic expansion tubes. These screws are designed for maximum strength and durability, while the plastic tubes provide a tight and secure fit. Ideal for use on drywall, concrete, and plaster walls, this kit is ideal for all your mounting needs. Features -Color:Black -Material:Stainless steel -Size:3.50X0.80X0.80cm/1.38X0.31X0.31in -Size:4.20X1.30X1.30cm/1.65X0.51X0.51in -Abundant supply: with abundant piece in pack, you'll have more than enough screws and anchors for multiple projects, ensuring you never run out -Excellent construction: made from stainless steel, these screws offer high strength and resistance to damage -Protective coating: the plating provides an extra layer of wear resistance, extending the lifespan of the screws -Discreet appearance: the white plastic expansion tubes are designed to with most wall colors, providing a neat and tidy finish -Easy installation: these screws and anchors are designed for easy installation, making them ideal for securely mounting items on walls without professional help Package list: 400 x screws 400 x anchors