The keg allows riders to store all key emergency gear such as extra tube patch kits micro tool or even phone all in one rigid durable 16oz container that easily fits into any specialized bottle cage 16oz container made from durable bpa free pete material wide 63mm opening makes it easy to place and retrieve items from inside keg featuring a quotstash capquot on the underside of keg lid providing an ideal place to store patch kits printed with non solvent base uv cured cpsc app