21 Inch Drawer Slides - 10 Pairs Heavy Duty Full Extension Rails with Soft Close - Steel Ball Bearing Runners - Cabinet Kitchen Drawer Glides with Lock

【Heavy Duty Construction】: Crafted from durable galvanized steel; supports up to 100 lbs per pair; ensures long-lasting performance and reliability; provides excellent corrosion resistance for sustained use in various environments 【Soft Close Mechanism】: Integrated dampening hydraulic cylinder on both sides; allows for smooth, quiet, and controlled drawer closure; prevents slamming and reduces noise; enhances user experience with gentle operation 【Full Extension Design】: Three-stage full extension allows for near-complete drawer access; eliminates blind spots; facilitates easy visibility and retrieval of items; ideal for maximizing storage convenience and organization 【Adjustable & Compatible】: Features a 3D adjuster and metal plate for precise calibration; compatible with 1/2 inch and 5/8 inch drawer side panel thicknesses; suitable for American-style cabinets; simplifies installation and ensures a secure fit 【Secure Locking Feature】: Includes a locking mechanism to prevent accidental drawer opening; enhances safety and stability; ideal for applications where secure storage is required; provides added peace of mind during movement or use