【Excellent Durability and Long Life】Adopting high-quality slide rails, it has passed over 350,000 open/close tests. It achieves a long lifespan of approximately 30 years even with daily use. 【Smooth Movement Even with Heavy Objects】Using durable Q235 cold-rolled steel and 9mm large steel ball bearings, it achieves smooth opening and closing even when loaded with heavy items. With a highly stable 3-stage full-extension design, you can fully extend the drawer to its full depth. Ideal for commercial use, such as in machine cabinets, warehouse storage, and truck drawers. 【Smooth Movement Even with Heavy Objects】Using durable Q235 cold-rolled steel and 9mm large steel ball bearings, it achieves smooth opening and closing even when loaded with heavy items. With a highly stable 3-stage full-extension design, you can fully extend the drawer to its full depth. 【Locking Function for Enhanced Safety】Equipped with an automatic locking mechanism when fully opened and closed, preventing drawer slippage or accidental opening during work. 【Easy Installation & Wide Range of Applications】Comes with a detailed Japanese instruction manual, allowing even beginners to install it smoothly. Compatible with M5/M6 screws, making it extremely user-friendly.