Have compatibility among tandem tires, it locks wheels through making use of drive to each tires. Aids in trailer stabilizing and stops tire shifts. A hand-operated plated ratchet wrench (Fashion 841025, incorporated) turns a pressure nut, extending the chocks in opposition to the tires for locking and retracting the chucks for elimination. Calls for 2-1/2″ clearance among tires. Opens to ten”.
Scissors Kind locking chock prevents trailer rolling.
Extends from 2-1/2″ to ten”
Rust inhibitive coating.