This is an antique Pulley Wheel that measures 18" across and 4" deep. It came from a Mill in central PA. This piece is quite interesting and also decorative. It has a square opening in the middle that at one time had a rod that went through it and turned the pulley. The square opening measures about 2 1/2" x 2 1/2". Please see the photos. This piece came from an estate in central PA. It weighs 19 Lbs. Please ask if you have any questions.... You can pick this up locally or we can ship it. Thank you.