The package includes: 150 plastic anchors + 150 screws (300 pieces total), a sufficient quantity to meet various needs. Advantages: Expansion screws can be installed on drywall, which is simple to use and aesthetically pleasing. It can save time. Durable: The plastic anchor is very durable. The self-drilling drywall screw set is made of high-quality stainless steel, which is very strong and difficult 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 ribbed anchor is expanded on two opposite sides, increasing the fastening force and enhancing the anti-rotation sleeve design. It will not rotate when the drill is running. Tighten the screws quickly. Application: plasterboard, fiberboard, hollow panels, etc., for curtains, lamps, cross-stitch, frames, ornaments, decorative pieces, etc.