Big 70mm RC Model Plane Aircraft Foam Wheel tyre tire sponge glider light weight\n\n\nDescription:\n1.These wheels are ideal for RC Aircraft Model Toy, light weight, flexible, easy for the airplane to fly.\n2.These open spoke wheels will add a sporty look to your model. They have been designed with electric models in mind.\n3.It's small and easy to install in your RC airplane or RC car. Tires are made of sponge, hub are made of plastic, perfect replacement.\n\nMaterial: High Elastic Sponge Wheel and plastic\n70*24mm, means the wheel diameter is 70mm, thickness is 24mm.\nThe center hole diameter 3.0mm.\nweight is about 17g\n\nThe sponge wheel is a wheel specially used for aviation models, and its weight is very light. The tread is made of foam sponge, and the hub is made of plastic. Generally used on the landing gear of fixed-wing aircraft, only light weight can reduce the weight of the aircraft and fly.