- Made of iron material and yellow zonc plated finish, anti-corrosion and durable to use.- This Internal braces serve more as structural supports to strengthen corner joints against compressive failure. - Specially designed with L shape, is an important fastener to make furniture parts stay firm.- Widely used in home and factory areas, perfect for furniture, chests, screens, windows, etc.- Easy to install by screws. Mounting screws are not included. Specification:Material: IronFinish: Yellow Zinc PlatedDesign: Round EndThickness: 1.4mm / 0.055"Hole Quantity: 4Hole Diameter: 5 mm/ 0.2"Total Size: 40mm x 18mm x 40mm / 1.57" x 0.71" x 1.57" (L*W*H) Package Content:50(+/-2%) x Angle Brackets