These are top of the line removable heavy-duty stainless chocks for mounting dinghy, RIB, small boat, canoe, kayak etc on deck of boat, or aft swim grid, roof of trailer, RV, truck or anywhere else needed. The chocks are 6” high with 4” square pads and can be easily removed from the bases by a spring-loaded catch that leaves the deck space clear for other uses when needed. They should not be confused with cheaper and more common “screw down” fixed units. The universal top joint allows the chocks to be adjusted to perfectly fit the contour of the boat hull without causing damage. They have been in boathouse and are in near new condition and if bought today would be well over $2k + tax. (See recent Steveston ad in pics). Items are in Ladysmith.