DescriptionThey have an excellent expansion effect, which is better than 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. The anti-rotation structure design of the expansion sleeve prevents the anchor from turning in the hole during installation.Features- Color: White. - Material: Iron, PP. - Size: 8.00X0.80X0.80cm/3.14X0.31X0.31 inch. - iron screws, superior corrosion resistance and excellent oxidation resistance. - Plastic hollow-wall anchors are both light and tough, durable and not easy to break. - Which can ensure a 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 prevents the anchor from turning in the hole during installation.