STACKTECH Large 21-In W X 11.7-In H Black Plastic/Metal Tool Box. N/A (no drawer slides). CA Residents: Prop 65 Warning(s). The StackTech Large Tool Box is a large-capacity workhorse. It features an intuitive self-aligning top that allows StackTech boxes and totes to virtually stack themselves. An auto-locking interface ensures boxes seat securely, lock into place for transport, and easily unlock with the slide of a switch. A prominent lock indicator lets you know your Stack is safe to move without second guessing. Accessing tools is simple and intuitive with a one-handed center latch, standard to every size toolbox and organizer. Inside, you’ll find an internal tray along with grooves for a DIY divider (not included) to help Pros stay organized and partition their space. Full customization is at Pros fingertips with tool-free, quick-release steel accessory rails. StackTech Large Tool Box is built for high-impact durability with armored corners, a steel-reinforced lid, and IP65 dust and water protection to ensure it can handle the toughest conditions. Dual locking points secure tools on and off the jobsite. The StackTech Large Tool Box is engineered for Pros to build a system unlike any other and customize it to the needs of every trade. EASY STACKING: With self-aligning nesting boxes. AUTO-LOCKING: The mechanism engages when the box is dropped into place. SLIDE SWITCH: Unlocks the stack and clearly indicates when it is ready for transport. ACCESSORY RAILS: Allow adding quick-release accessories for a fully customizable solution. CENTER LATCH: Provides rapid access to tools. IP65-RATED: Silicone gasket seals the lid to keep out dust and water. STRONG AND DURABLE: With high-performance polymer construction, powder-coated steel corners, and a steel-reinforced lid. INTERIOR ORGANIZATION: Includes 1 inner tray. LOCKABLE: 2 locking points accommodate most lock sizes and types. We are always working hard to ensure your package arrives as soon as possible. Tracking information: We provide tracking information for all orders, so you can keep track of your package every step of the way. We are here to listen to your feedback and address any issues you may have. Your satisfaction is our top priority, and we appreciate your business. Thank you for choosing us!