The Runway(TM) EV2 is a reinforced economical hitch mount carrier designed for E-Bike transport. Safely transports two bikes and is RV compatible. The padded mast arms securely hold the bike's top tubes for safe transport. Features tilt-down frame, wheel holders, anti-wobble hitch pins and key lock security. Features: Two-bike capacity Fold-down center mast provides rear hatch and trunk access Secures bikes without wheel-to-wheel contact Anti-wobble design ensures a rattle-free transport Key locking arm knob for added security Note: Not compatible with tandem or recumbent bikes What's in the box: 1 Receiver Mast, 2 Mast Arms, 4 Wheel Trays, 1 Center Frame, 1 Hardware Kit, 2 Keys for Mast Arm Knobs, and 1 Instruction Manual