5X 31MM Rubber Wheel For RC Airplane And DIY Robot Tires 











Description:Item Name: rubber wheelDiameter: 31mmMaterial: EVA + rubber、rubber、 wear resistance、 light weight、 high quality. Specifications:diameter: 31.75 MM、 thick 9MM、 inner hole:  2.1 MM、 weighs about 2.0 grams Package Included:5 x 31MM rubber wheel