SZPLLZY Heavy Duty Swivel Castor Wheels, 3 4 5 Inch 4 Pack, Moving Silent No Floor Marks TPR Swivel Castors With Brakes, For M12 Bolts Top Hole Type Swivel Caster Wheel(Brake,125mm/5in)

【Material】Thermoplastic rubber (TPR) casters, which have the wear resistance of plastic and the high elasticity of rubber, are shock-absorbing and buffering when moving, do not damage the floor, and leave no scratches 【Size】Caster wheel diameter: 75/100/125mm; installation height: 107/132/157mm; top hole diameter: 12.2mm; single wheel load: 80/110/125kg 【Double Lock】The brake caster can lock the wheel and steering at the same time when braking, keeping the caster firmly in place, effectively preventings the caster from rotating randomly, for better safetys and peace of mind 【Smooth】The furniture casters have built-in high-strength solid steel balls and precision ball bearings, allowing the casters to rotate smoothly and flexibly, reducing wear caused by rotation and improving responsiveness under load. EASY STEERING: Equipped with 360 degree swivel head, the small wheels can respond immediately to changes in direction. These small castors swivel on ball bearings to keep the wheel turning even under heavy loads. It allows you to work in a tight space or other environment where greater maneuverability is required.