Description Are you looking for a professional, yet reasonable bike bottle cage adapter? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our Seatpost Bottle Mount Holder Adapter must meet your needs, this bike bottle cage adapter is one of the best choices for you. Features -Color:Black -Material:Alloy -Size:8.30X4.80X1.70cm/3.26X1.89X0.67in - The reasonable design structure makes it suitable for most bottle rack and has good adaptability. - Can be installed on your bike frame, bike handlebars, bike seat post, and etc. - Made of sturdy and anti-wear alloy material, not easy to deform and break, for a long time using. - Clip type design allows this Bottle Holder Mount Adapter to fix on different pole. - Stable characteristics, high performance and in great reliability, simple, easy to install. The reasonable design structure makes it suitable for most bottle rack and has good adaptability. Can be installed on your bike frame, bike handlebars, bike seat post, and etc. Made of sturdy and anti-wear alloy material, not easy to deform and break, for a long time using. Clip type design allows this Bottle Holder Mount Adapter to fix on different pole. Stable characteristics, high performance and in great reliability, simple, easy to install.