Anchor slides up and down on the shank and swivels 360 degrees. Includes working shackle and 3 small brass key rings. Only one size in this style, and it's a large piece, at 5" overall length with shackle and key rings. Weighs 1.9 ounces. Anchor alone is 2-3/8" long x 1-1/8" wide. Shackle alone (not including becket) is 1-3/8" tall x 1-1/2" wide (w pin).