Red 4-digit dial cable lock, approximately 90cm long, can be attached to the frame. Purchased before buying a bicycle. Installed as a double lock with the new bike's included lock, but removed it immediately. Never used outdoors. Can be unlocked at zero. The internal dial allows for resetting. - Color: Red - Type: Cable lock - Length: Approximately 90cm, thickness approximately 12mm - Number of dials: 4 - Mounting method: Can be attached to the frame Thank you for looking.