Mercury Outboards Flo-Torq II Hub Kit 835257K 6 Part Manufacturer: Mercury Marine / Mercruiser, Part Number: 835257K6, Boat Manufacturer: Tracker Marine, UPC: 745061518834 Measuring approximately 4" long x 2" wide x 2" deep overall; designed for use with surfacing propellers Compatible with many Tempest, Trophy, Fury, Rev 4 and Bravo 1 propellers Has 15 splines Sold as seen in pictures; Note every computer shows colors differently; All measurements are approximate; Hardware and instruction/installation manual not included