This Deluxe Rv Wheel Chock eliminates front to back motion by anchoring the opposing wheels of tandem axle trailers and fifth wheels. When engaged, the Rv wheels actually work against each other to arrest any created motion regardless of ground surface or slope. One piece with easy to use lever. Can be locked to minimize theft.  Heavy gauge all steel construction with corrosion resistant zinc plating. Available in one or two pack. Features Include:

• Easy to use, one piece stabilizer chock collapses to just 1.5" and expands to 5".
• Unique design eliminates front-to-back rocking motion.
• Works by anchoring the opposing wheels of tandem axle trailers and fifth wheels.
• Lockable to prevent theft (lock not included).
• E-Z grip handle increases leverage. 
• Tough, built with steel