I have shelves all over my house for different purposes. From the heavy shelves in the laundry room holding 100 pounds of laundry and detergent to the shelves above my bar holding dozens of bottles of liquor. Everyone now has this Toggler SnapSkru. I even replaced some cheap, useless anchors with them after I bought them. A NOTICE. I would definitely drill a pilot hole for them rather than relying on the self-drilling (giggity) feature to place the anchor exactly where you want it. Drill a pilot hole to make sure they don't go off center and every time I did I never missed. NOTE 2: You will completely destroy your wall if you ever decide to remove it. Unless you're 100,000% sure you never want to move the item you're hanging with them, don't use them.