Description They have an excellent expansion effect, which are better than the nail fasteners, can ensure long time using and prolong screws life. The ribs on the plastic anchors expand on two opposing sides as you tighten the screw. Anti-rotation structure design of the expansion sleeve prevent the anchor from turning in the hole during installation. Features - Color: Assorted color . - Material: Carbon steel, plastic. - Size: 5.00X1.30X1.30cm/ 1.97X0.51X0.51in ch. - carbon steel screws, superior corrosion resistance, rust resistance and excellent oxidation resistance. - Plastic hollow-wall anchors are both light and tough, durable and not easy to be broken. - Which can ensure long time using and prolong screws life. - The ribs on the plastic anchors expand on two opposing sides as you tighten the screw. - Anti-rotation structure design of the expansion sleeve prevent the anchor from turning in the hole during installation.Package list: 6 x screws 6 x expansion tubes