Starts easier than other drywall anchors, drills directly into drywall even if you hit a wood stud, Deep thread design provides strong engagement in 3/8", 1/2" or 5/8" gypsum wallboard, Drill Point Pre-drills precise hole in wood or double drywall etc. No hole preparation required, Kit Includes 50pcs Zinc Anchors, 50pcs #8 x 1-1/4'' Phillips Screws and a Plastic Case, Zinc die-cast design for maximum durability. No Pre-Drilling Needed, Anchors can be Removed.