H.O. Sports H.O. Sports Universal Nylon Vest - Black from Wholesale Marine

…it is to be parked. Position center of trailer stop directly under the wheel of the single wheel trailer jack, unhook boat and let the wheel jack down adjusting cup so wheel restsin center of cup. Secure trailer with wheel chocks placing one in front and one behind on rear trailer tire.

Works on concrete, asphalt, sand, rock, dirt, grass - even muddy locations. Replaces those worn 2 by 4s. No more sinking in the mud. No dents in the driveway. Easy lift with the rope handle. Light weight - bring it along, it even floats! Tough enough to drive over. Guaranteed not to crush, crack,…

Protection against slippage anytime a trailer needs to stay put. Strong heavy gauge metal chocks fold flat for transport and set up in seconds. Convenient package of two. Each folded measures 5"x6"x1-1/4", each set up 5"x6"x4".