Material: Plastic; Net Weight: 11g Package Content: 20 x Toy Wheels; Main Color: Black, Silver Tone for Shaft Dia: 2mm/0.08" Wheel Size: 20 x 6mm/0.8" x 0.24"(D*H) 20mm Dia Plastic Roll Spoke Car Auto Model Toys Wheels. perfect parts for DIY toys. Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm.