4Pcs 2/3 Inch Caster Pu Transparent Universal Crystal Wheel No Noise Small Cart Industrial Wheel Office Chair Casters Tool ,Reliable

Using PU materials, silent and wear-resistant, the wheel body with anti-winding, dust-proof design Dual brake design, more reassuring to use, pedal strength Y hard, not easy to break No less than 20 steel balls in the whole disk, more flexible steering Thickened bracket, greater toughness, strong load-bearing One set consists of four casters with brakes