Floating Shelves Brackets Made of high quality steal material, sturdy and sturdy. These floating mantel bracket supports offer a strong bearing force, can hold upwards of 150+lbs. Easy Installation Our floating shelf brackets will always be square. You can count on the precision uniformity of our Heavy Duty Shelves Bracket to ensure that all of you commercial or home improvement projects run smoothly. Just drill the holes, recess the shelf, and slide them on. Hidden Shelf Brackets multiple Places Suitable for many places, such as Kitchen Shelving, Floating Mantles, Bathroom & Laundry Storage, Floating Bookshelves, Heavy Duty Garage Shelving.