<b>Toy wheels Features:</b><br> Material: PP<br> Main Color: Black<br> Shaft Dia: 1.95mm/0.08". Suitable for 2mm shaft<br> Diameter: 30mm / 1.2 ".<br> Tire width: 8mm / 0.31 ".<br><br> <b>STEM shaft Features:</b><br> -Length 100mm/3.9"<br> -Diameter 2mm/0.08"<br> <b>Package include:</b><br> 100 x Plastic Toys Wheel(30mmx8mm)<br> 50 x STEM Shafts(2mmx100mm)<br>