This is a Giant Attraction hybrid mountain bike, it's been taken care of very well, recently cleaned and tuned up, tires and chain in good condition, gears shift well. V-brakes, Shimano derailleur, kick stand, round hybrid tires 19" frame, suitable for someone around 5'10" 29" from ground to horizontal bar 20.5" from seat post to stem Seat goes up or down quite far -- it was really high because I was testing it and I'm tall. No known issues.