Specifications: Name:Self-Drilling Anchors Screws Color: As shown Size: A:30*35mm/0.47*1.37 inches B:40*45mm/0.47*1.57 inches Material:Carbon Steel, Zinc Package includes: 50/100/150pcs × Self-Drilling Anchors Screws Self-Drilling Anchors Screws1:Knock the anchor into the drywall, 2:Insert screw through fixture and into metal plug, 3:Tighten screws secure. It is more convenient and quicker than traditional plastic anchors Quick InstallationWith this anchors, you can easily drive screws into drywall. The focus of these anchors is concentrated and can quickly break through the resistance of the drywall. They are also very strong and will not break after being driven into a screw No Need to DrillWall screws and anchors drywall is easy to operate, no need to drill or open holes, screws and objects can be easily removed without damaging the wall High Quality MatetrialMade of carbon steel and plated with yellow zinc not easy to oxidize for maximum durability. The split in the ribbed anchors expand on two opposing sides as you tighten the screw, increasing holding power Widely ApplicationThis anchors are specially designed for drywall and can help you quickly install screws on drywall. They can be used to hang objects on the wall with a maximum hanging weight of 66 pounds