General description Aolissheng heavy-duty drawer runners are designed for durability and smooth operation. These full extension ball bearing drawer slide rails can support a maximum load capacity of 70 kg, making them ideal for various applications in home improvement and DIY projects. Technical specifications Size: 400 mm Installation thickness: 12.7 mm (each) Width: 50 mm Maximum load: 70 kg Total length: 81.3 cm Durability: Over 100,000 opening and closing cycles Expected lifespan: More than 30 years Installation Mounting brackets and screws are not included. It is recommended to wear gloves during installation to protect your hands from sharp metal parts. Usage Removable and fully extendable design for easy access. 3 folding sliders ensure smooth and quiet operation, reducing noise and avoiding shock during use. Other information High-quality electroplating with blue coating for anti-rust and corrosion protection.