arrma 1/10 dboots backflip lp front/rear 3.8 tire & inserts (2), arac9435 arrma these dboots back-flip lp tires and inserts provide optimum performance on a wide range of surfaces.features:aggressive tread pattern for excellent traction on all off-road surfaces - durable material compound for long-lasting performance - medium compound foam inserts included specification 3.8" (96mm) bead diameter 3.03" (77mm) width 6.10" (155mm) outer diameterincludes:2 x dboots back-flip lp tire 2 x foam insertrequires:wheels such as #ar510113