Using your Blackburn GRID seat bag is a breeze. First, open the bag and neatly arrange your tools like the road tube, multi - tool, tire levers, and CO₂ inflator inside. Then, use the dual - sided seat post hook & loop strap to attach it securely to your seat post. Make sure it's tightened well but not too tight to avoid damaging the strap or your bike. When riding at night, the reflective material on the bag will help keep you visible, so there's no need to worry about safety. For maintenance, simply wipe the bag with a damp cloth if it gets dirty. Avoid using harsh chemicals as they may damage the water - resistant coating. If you're not using the bag for a long time, store it in a dry place away from direct sunlight.