Description Are you looking for a professional and practical bike bottle cage adapter? If yes, look no further! Our bike bottle cage adapter must meet your needs. This Seatpost Bottle Mount Holder Adapter is made of sturdy material, durable and sturdy for long-lasting use. Fine workmanship practicality and durability. Features -Color:Black -Material:Aluminium alloy -Size:7.50X5.00X1.50cm/2.95X1.97X0.59in - 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. - The screws fixation for better fixing effect, not easy to come off, very practical. - Adjustable 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. The screws fixation for better fixing effect, not easy to come off, very practical. Adjustable design allows this Bottle Holder Mount Adapter to fix on different pole. Stable characteristics, high performance and in great reliability, simple, easy to install.