1.Material : Galvanized Solid steel. Will not get rust or bend.This floating brackets included 6pcs 2.Dimension: 70mm(L) x 75mm(W) x 14mm(H); Mount Hole Distance: 42mm 3.Advantage:Strong enough to hold your shelf steadily. Can be used in area with limited space, or hang a invisible shelf on wall. With premium finish and durability, this shelf brackets have better performance and it perfect to be your floating shelves helper 4.Kindly Note:We recommend mounting to a stud on your wall for maximum support. Each bracket holds 15lbs. For heavier shelves please add extra brackets to distribute the weight 5.Scope of use:Use a router to remove 42mm from wood. Made to completely hide behind your shelving, small profile for easy concealing Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please dont hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it