Size: Includes 4pcs bracket (size: 67 x 75 x 14mm) and matching screws, expansion tube; the distance of the installation hole: 45mm, a wood thickness greater than 14mm Floating support: Completely hidden floating shelf support. A perfect space-saving storage that keeps your home beautifully organized, improves space flexibility. Good quality material: made of high quality cold rolled iron, nickel plated on the surface, wear-resistant and fade-resistant. corrosion, rust and bend free, brackets weight capacity is up to 12kg. Easy to install: Floating shelf metal brackets just fix the bracket to the wall with screws and push through the wooden board, you can easily assemble it. (More details on the picture) Wide Application: Install it in woodwork, bookshelves, bookcases, cupboards to store your books, vases, family photos and other knick-knacks. Widely used in home, kitchen, garage, office, cafe, catering, store and more. Advantages: Double-hole design, firm and reliable, strong load-bearing, not easy to break Cold-rolled iron material, nickel plating process Wear resistance and corrosion resistance corrosion Texture polished and polished, clear Comes with matching screws, no additional purchases Specifications: Material: iron Sizes: as shown T-bracket :as picture show Screw:3.7cm Tube:4cm Package include: 4pcs*hidden T-shaped bracket 70 x 75 x 14mm 8pcs*screws 8pcs*expanding tube Attentions: We recommend that you install it on poles on the wall for maximum support. Each bracket can hold 15kg, we recommend placing 10kg for better use. For heavier shelves, add additional brackets to distribute the weight.