1.PREMIUM MATERIAL: Anchors and screws kit contains both nylon anchors and zinc alloy anchors, carbon steel Phillips head screws. They have excellent strength and abrasion resistance. They are designed to prevent wall damage and can be easily removed and reused for long-lasting performance 2.MUlTIPLE SPECIFICATIONS: The 240pcs wall anchors assortment kit with self drilling drywall anchors contains abundant size options:20pcs Black/White Anchors 50Lbs(1.61'x0.51'), 20pcs Black/White Anchors 35Lbs(1.22'x0.55'), 20pcs Long Zinc Anchors 75Lbs(1.65'x0.47'), 20pcs Short Zinc Anchors 75Lbs(1.34'x0.47'), 60pcs #8 x 1-1/2'' Screws and 60pcs #8 x 1-1/4'' Screws 3.NO PRE DRILL HOLE PREPARATION REQUIRED: The drywall anchors have a sharp end point, they can be screwed directly into the wall with a screwdriver, insert the screw, and the anchor will fit snugly into the wall. The installation process is simple and convenient 4.WIDE APPLICATION: The anchors and screws kit is perfectly suitable for the installation of bathroom and kitchen accessories, shelving units, light fixtures, mirrors, picture frames, curtain rods on various wall surfaces, such as brick walls, concrete walls, dry walls and wooden walls