Main Material: Rubber, Metal; Package Content: 2 x Caster Wheels Product Name: Caster Wheel; Weight: 99g Main Color: Black, Silver Color Overall Size: 6.8 x 4cm/2.7" x 1.6"(H*D) Wheel Size: 4cm x 3.5cm/1.6" x 1.4"(D*T) Provide low starting and rolling…