(2) KNK Titan 1.9 Beadlock Gray w/Red Ring Wheels come fully assembled with (8 lug) hubs and hardware. 1.9" tall x 1" wide Designed to work with KNK wheel wideners and 8 lug hub spacers. (SOLD SEPARATELY) Depending upon the application, an additional hub spacer or oversized hex, MAY be required. Always check wheel clearance after application.