Features an ABS plastic frame that is very resistant to external forces, wear and tear, water and detergents. The caster has a unique locking system that is beautiful and the force handling is significantly lighter than similar products. PU wheel are smoothly and noise reduction.

Harm of static electricity to humans: With a very large amount of charge on the surface of an object, creating an extremely strong magnetic field in the surrounding environment, in the long term, will affect human health, especially the system. nervous system, genitourinary system, circulatory system..