The attached photos were taken with the height adjuster in the lowest position of just about 5 feet tall. Cranked fully up, they will stand just over 6 feet tall. The binoculars are 27 inches long and about 16 inches wide. The base is a two part system. The very bottom of the base has a 12 inch wide base that mounted to the deck. About 30 inches up from where it mounted to the deck, you see four bolts. These bolts hold the two sections of the base together. The top section (the cradle and crank up assembly) are about 26 inches tall. The actual binoculars are attached to the cradle with two mechanical bolts with big black knobs on them. The total weight as shown is about 300 pounds.