Pro-Grade 600lbs Load Capacity - Built with industrial-grade, reinforced 16-gauge steel, this 4-tier rack supports up to 600lbs without bending. Designed for heavy blow mold cases, circular saws, and full metal toolboxes, ensuring durability for professional mechanics and workshops. Open-Modular Diy Expansion System - Features integrated 4mm mounting studs on side panels for customizing with power strips, magnetic tool holders, bit organizers, or hooks. High-Visibility Fluorescent Green Panels - Provides maximum contrast and visibility in dimly lit spaces for quick gear location. Optimized Storage for 8 Drills and Accessories - Bottom tier has 8 reinforced slots for cordless drills, impact drivers, and rotaries, with 4 shelves and side utility racks organizing bits to heavy power tools. Quick Frame Assembly and Flexible Mounting - Includes all hardware for minutes assembly with pre-drilled holes for anchors or lag bolts on wood studs, concrete, or brick. Weight: 17.89 pounds.