The package includes: 150 pieces plastic anchors + 150 pieces screws (total 300 pieces), sufficient quantity, can meet various needs. .Advantages: Expansion screws can be installed on the gypsum board, which is simple to operate and beautiful indeed. Can save more time. .Durable: The plastic anchor is very durable. The plasterboard self-drilling screw set is made of high quality stainless steel, which is very durable and not easy to break. It has good corrosion resistance in harsh environments such as high temperatures and cold weather. .Perfect design: When tightening the screw, the space in the rib anchor is widened on two opposite sides, which increases the fixing force and widens the anti-rotation design of the sleeve. It will not spin when the drill is spinning. Quickly tighten the screws. .Application: plasterboard, fiberboard, hollow board, etc., for curtains, lamps, cross stitches, picture frames, ornaments, decorative pieces, etc. .