Specifications: Stronger Support Capacity: Double row design, each adhesive shelf bracket has 2 support frames and the area of the adhesive surface is doubled. Easy To Use: Self adhesive bracket, no drilling, no need tools can be used to finish the installation work quickly. Stronger Material: High strength supports peg and better quality adhesive, each of shelf support peg can carry not less than 30 pounds of weight, you can use 4pcs or more supports peg to support the same shelf to increase the bearing capacity. Used for A Variety of Cabinets and Walls: It can be with metal, glass, wood, marble, ceramic tiles, plastic and other hard and smooth surface firmly bonded. Note: Please allow 1-3cm differs due to manual measurement. Press tightly on the contact surface. Contact surface should be clean and dry. Used in a relatively smooth surface.