These dBoots Fortress MT Tire and Inserts provide optimum performance on a wide range of surfaces.FeaturesAggressive tread pattern for excellent traction on all off-road surfaces - Durable material compound for long-lasting performance - Medium compound foam inserts included SPECIFICATION 2.8" (72mm) Bead diameter 2.8" (72mm) Width 4.9" (125mm) Outer diameterIncludes2 x dBoots Fortress MT Tire 2 x Foam InsertRequiresWheels such as #AR510099 #AR510097