Self-sufficiency requires you to bring a few tools with you. hitting the road but you don't have to keep them all in your jersey pocket. The Blackburn Grid MTB Seat Bag has a half liter capacity in which there is enough space for levers for tires, chain tools wrenches or any other small accessories that you would like to have with you during your trip. It is made of durable material , on which a waterproof coating is applied so even if you get caught in a light shower, you don't have to worry about it that your equipment will get wet. Even the zipper is waterproof and keeps even the smallest items securely inside the bag. Universal saddle mount compatible with almost any bike including drip stand.