Check the listing for details. Wolf Tooth Performance Headset - ZS44/28.6 Upper, 6mm Stack, Black. Color: Black, Condition: New. Listed at 44.95 USD. Powered by Frooition Wolf Tooth Performance Headset - ZS44/28.6 Upper, 6mm Stack, Black Item Description Wolf Tooth Performance Headsets are machined out of aircraft grade aluminum and assembled with Black Oxide Cartridge Bearings, balancing quality and price. Features:Black Oxide Bearings are made from chromium steel for high load capacity and durability Black oxide coating reduces corrosion Specifications:Color: Black Bearing Type: Cartridge S.H.I.S. Stem Clamp Diameter: 28.6 Threadless Upper Stack Height: 6 S.H.I.S Upper: ZS44 $44.95 NEW Wolf Tooth Powered by Frooition Frooition Frooition | No-js Template | eBay design, eBay store design, eBay shop design, eBay template design, eBay listing design (ver:froo_no_js) This listing is currently undergoing maintenance, we apologise for any inconvenience caused.