... noise and smoothly when conveying. No marking grey castors to keep the floor clean. 5-castors design, more stable than 4 castors ... .Material: Main Structure: PP Hand Grip: steel.Performance Testing The application of innovative, attractive plastic body and noiseless castor, reduces ... Noiseless Hand-Truck:Under rated loading, keep the speed at 4km/hr and move 10km, the wheel rubber can not be distorted, ...