SP Connect SADDLE CASE SET is a practical, water resistant, protective case for a bike where you can store your tool or a spare tube. The bag can be easily attached to a bike seat with the included extension. Saddle Case is also equipped with integrated MicroRail system that will allow you to attach the SP LED light directly to the bag. Thanks to the patented “twist to lock” mechanism, you can easily remove the Saddle Case and reattach it when needed.