High load capacity up to 120 kg: The drawer rails are made from high-density high-strength cold-rolled industrial steel with solid steel balls. The maximum load weight is 120 kg and varies depending on the rail length. Blue sealing treatment: The rails feature a galvanised blue sealing surface for improved durability and smoother operation. Locking mechanism and removable: There is a blue handle for locking and unlocking. When fully extended or fully closed, the rails automatically lock to prevent movement and keep the drawer stable and safe. Press the locking handle lightly to unlock and allow free sliding. Fully extendible and smooth: The 3-way full extension allows the drawer to be fully pulled out for complete access. Two rows of high-quality solid steel balls inside ensure smooth operation even when the drawer is fully loaded, making it easy to reach items. Use scenarios: - In the kitchen for heavy pots, pans, and utensils to keep contents secure and accessible. - In a workshop or garage tool chest for hand tools and hardware that require stable, smooth drawers. - In office or storage cabinets for heavy files or equipment that need secure, full-extension access.