The camera platform is 78mm in diameter, the tripod plate is 89mm in diameter and stands 115 mm from the base. The head weighs in 1090 grammes on my pretty accurate kitchen scales. Probably more suited to medium or large format cameras because of the physical size but of course will work with anything with the appropriate threads or adaptors.
Please study the photographs for condition, there are plenty of signs of normal use but nothing that affects the operation. The ball movement is perfectly smooth at all angles and the adjusters are straight and all work as they should.
UK only please.