STRONG VALUE INDUSTRIAL DESIGN: PetrelWing countertop support top mount bracket is ideal for concealed countertop , Safely provide strong and nonintrusive support for any types of the countertop , include granite, quartz, marble, manufactured stone & more .,NON-INTRUSIVE AND MODERN DESIGN: Once installed this support bracket will be invisible, non-intrusive design provide more open space for chairs and legs ,Support countertop without corbels ,which means no more knee knocking when sitting at your countertop!,HIGH QUALITY INDUSTRIAL MATERIAL: This heavy duty floating shelf brackets made of one piece 2-1/2 Inch wide and 1/4 Inch thick high strength steel , provide high bearing capacity and high stiffness ,making sure your or your customer’s countertop investment is protected against cracking or tipping.,EXCELLENT MADE: Countersunk holes and back-leveled edge for safety and modern style, rustproof black powder coating finish, the quality have been tested by a lot of contractors in US .,Easy to install: Very easy to install , 6 pieces 2 inch wood screws included .