Heavy Duty Casters for Demanding Tasks：Engineered with reinforced steel frames and precision ball bearings, each 4 inch heavy duty caster effortlessly supports up to 7000 LBS. Built to stabilize heavy machinery, tool carts, warehouse racks, and more—resistant to deformation even under prolonged stress

Multi-Surface Mastery：Industrial grade heavy duty casters with high-density nylon rollers with anti-slip treads ensure whisper-quiet movement and superior grip on wood, tile, carpet, or rugged terrain. Weatherproof and abrasion-resistant, ideal for indoor/outdoor durability

360° Smooth Swivel & Instant Lock Mechanism: Nefish heavy duty casters with dual-ball-bearing construction enables agile steering in tight spaces. Integrated one-touch brake locks wheels instantly, preventing accidental shifts and ensuring stationary stability

Universal Compatibility: Heavy duty casters wheels seamlessly integrates with hand trucks, industrial equipment, furniture, storage systems, and toolboxes. Perfect for factories, warehouses, garages, or outdoor projects—simplify heavy lifting across any environment

Anti-Tip Design with Ultra-Low Center of Gravity：Widened plate and low-profile wheels minimize tilt risks by 50% versus traditional casters. Ensures safe transport on uneven surfaces or during sharp turns, even with top-heavy loads