Black Walnut Cracker Table Top Adapter. Condition is "New". Allows wall mounted nutcracker to be used on table top. Pine Board 1×6×22" is required. This unit is very robust, made in Midwest USA. It will crack macadamia nuts and any nut that will fit into it. The first one I made has cracked over 6000 black walnuts. Opening 1 3/4 in. Closes down to 5/8in. Any questions feel free to ask. Thanks Bob