3/8" GT Mohawk sealed high-flange. The listing is for one front hub. Rider-condition but still very presentable with some scratches. There is a hairline crack on one of the flanges (see the 5th photo). I've owned this hub since 2010. I ride only flatland — I've had it on a few riders and the hairline crack hasn't been an issue for me. Axel has been replaced with a new chromoly, slotted hollow axel. The bearings are original and the hub spins well. After owning it for 15 years, I'd love to pass it on for someone else to enjoy and hopefully ride.