Gladiator Low Profile Granite Countertop BracketsVIRTUALLY INVISIBLE; Our Gladiator Low Profile brackets are non intrusive, leaving an open space for chairs and legs. No corbels are needed, which means no more knee knocking when sitting at your countertop! HEAVY DUTY; With Solid Hidden Welds these Low Profile Brackets Measure, 7" x (9",11",13", 15", 17") x 2. 5" with a Max Load of 500 lb. 5 mm Thick Iron Industrial Shelves Brackets (2 COUNT)PROUDLY MADE IN THE USA; With high quality American steel.