this cassette has had zero miles rode on it. all cogs and spacers are present it was fitted to a bike in the work stand to see if it would be compatible with the derailleur. (The derailleur didn't work with it and customer didn't want to upgrade their derailleur. so it's just been removed and put back in the box.) there may be signs of oil on the cogs/inside the box if you looked hard enough. box is slightly damaged. 11 speed 11-36 ratio retail at £107 grab a bargain