High-quality materials: The entire material set is made of high-quality 304 stainless steel, suitable for installation and use in dry and humid indoor and outdoor areas. Rust and corrosion protection: The stainless steel hook bracket is characterized by high hardness, high load-bearing capacity, strong plasticity, rust and corrosion resistance, is strong and durable, and therefore has a longer service life. Easy to use: 1. You only need to draw the cutting line in the installation area. 2. Drill the hole with a 12 mm drill bit. 3. Insert the expansion screw. 4. Insert the hanging plate and tighten the screw. Application range: very suitable for hanging chairs, chandeliers, hanging swings, hammocks, sandbags, yoga, sling training, etc. It is an ideal choice for fixed connection and suspension. Specification Quantity: 1X fixed ceiling plate (9 X 90mm), 4 X expansion screws (12 X 70mm), 1X safety spring buckle (8 X 80mm). The load capacity is 300 kg (defined as a solid concrete ceiling).