Package & Size--The kit includes 56pcs plastic wheels and 28pcs car axles. Wheels: 16~63.5x5.5~27.5mm/0.6~2.5x0.2~1.1 inch, Hole: 1.8mm, Car Axle: 100x2mm/3.9x0.01 inch.The quantity can satisfy your various needs in your DIY crafting. Quality Material--The wheels and axles are made of plastic and iron material, strong and durable, not easy to break or deformation, light weight, easy to carry and store, you can use for a long time. Enjoy DIY--You can use your own creativity and design your unique art work, which will bring you much happiness. Your making DIY crafts are also perfect and meaningful gift for model car collectors. Easy To Use--Just choose the suitable wheels and install them on the cars, then you can get the perfect plastic vehicles made by yourself. The axles are suitable for all the wheels in the package. Wide Application--They not only be used to make your own model vehicle accessories for cars, or replace a broken wheel, but also can be made into handicraft decoration.