This is a KRYPTONITE kryptoLok U-lock. I purchased it about 20 years ago and used it for a while in a covered bicycle parking area, but haven't used it much since then. Unfortunately, I can only find one key, and I'm not sure if it's possible to get a spare key made. I hope someone can make good use of it. Please refer to the photos for the size and condition. The key has a 7-digit serial number starting with S S (including S S). - Brand: KRYPTONITE - Model: kryptoLok - Type: U-lock - Key: Key included Thank you for looking.