Garage Storage Hooks Is Perfect For Hanging Heavy Duty Objects Such As Folded Chairs, Ladders, Bike, Tools, Garden Hoses, Lumber, Sports Equipment And So On. You can wall mount these hooks in the garage, shop, basement, shed, and utility room for efficient storage. Garage ladders hook works on hardwood, studded walls, block and brick. Packing Includes 6 x Ladder Hooks Outside wide: 9.8 inches / 25cm, Inside wide: 8 inches / 20.5cm Outside Height: 9 inches / 23cm, Inside Height: 8.2 inches / 21cm Iron tube diameter: 0.65 inches / 16mm, EVA tube diameter: 0.9inches / 23mm 12 x Screws, Length: 1.5 inches / 4 cm 12 x Anchors, Length: 1.5 inches / 4 cm Max load capacity: 30Lbs Installation Instructions: 1. Choose and mark the postion for installation. 2. Use the driller to drill hole on the wall according to the size of the expansion anchors. 3. Insert the drywall anchors into the hole and put the hook on the wall. 4. Use the screw driver to tighten the screws on the hook.end of installation. screws and anchors Naikozmo can only provide the screws and anchors that meet the needs of most people, Only suitable for hardwood and common walls. When it comes to special walls, such as brick walls, cement walls, studs, and plasterboard walls,they require different screws and anchors, so we can't provide all types of screws and anchors. You need to prepare the necessary screws and anchors by yourself.