Great Planes Dural Landing Gear is Hardened to Help Absorb the Abuse of Rough Field Landings. INCLUDES: One L 1/2 .09 Dural Landing Gear. SPECS: Width from axle to axle: 7-1/2" Height: 2-3/8" Width of mounting plate: 2-1/2" Uses 8-32 x 1-1/2" Socket Head Bolts for axles. Designed for .09 size planes.