【1000LBS ULTRA-STRONG CAPACITY】 – Built with high-impact Polypropylene (PP) and reinforced industrial steel plates. This set of 4 casters supports a massive 1000lbs total (250lbs per wheel), providing rock-solid stability for your heaviest workbenches and machinery. 【DUAL BRAKE SAFETY SYSTEM】 – Features a responsive total lock mechanism that secures both the wheel and the swivel simultaneously. Keep your equipment firmly in place on any flat surface, ensuring maximum stability and preventing unwanted movement during precision tasks. 【DURABLE PP & OIL-RESISTANT】 – Our premium PP wheels are built to withstand grease, oil, and harsh workshop debris. Unlike softer wheels that may wear down, these hard polypropylene casters are optimized for garages and demanding industrial environments. 【360° EFFORTLESS MANEUVERABILITY】 – Equipped with double precision ball bearing swivel heads, these 3-inch casters offer smooth 360-degree rotation. The hard-surface PP wheels minimize rolling resistance, making it much easier to move heavy loads with less effort. 【VERSATILE INDUSTRIAL APPLICATION】 – Designed for rugged, long-term use. These casters are the ideal upgrade for toolboxes, mobile carts, flight cases, and heavy-duty shop furniture. Includes all necessary hardware for a quick setup. Our team is here to assist with any product questions. Product Highlights: Material: High-Density Hard Polypropylene (PP) Load Capacity: 250lbs per wheel / 1000lbs total Wheel Diameter: 3 Inch Plate Size: Standard Industrial Top Plate Brake Type: Total Lock (Wheel & Swivel) Description: Upgrade your workspace with the HOLKIE Heavy Duty 3-Inch Caster Wheels. Engineered for industrial performance, these hard PP wheels provide superior load support without the flattening issues of softer rubber. The dual-locking system ensures your workbench or cart stays exactly where you need it. Perfect for garage floors, shop environments, and mobile workstations.