6pcs RC Model Airplane Super Light Sponge Tire Tail Wheel 18mm 0.7" Product Name : RC Airplane Sponge Wheel;Wheel Size : 18 x 10mm/ 0.7" x 0.4"(D*H) for Shaft Dia : 2.5mm/0.1";Material : Sponge, Plastic Color : Black Net Weight : 10g Package Content : 6 x RC Airplane Sponge Wheel