This is a nice toolmaker made, hardened precision ground V-Block with an adjustable clamp included that fits both V sections of this multi-purpose V-block. This is a medium size measuring 1.8" x 1.8" x 3.75". This block has been recently inspected, found to be square and and parrellel within .0003". There is no owner's name or marks on it, very nice shape overall. The clamp is painted black, tool steel with a threaded thumbscrew in great shape! The round stock in the V-blocks in the pictures is just for display, not included. There are a total of 4 tapped holes, 3/8" size. As you can see there is an area that can also be used as an angle plate if you wish, that area is also square and parrell ground. A very nice toolmaker made precision V-block!