Onedayshop Bike bicycle water bottle cage quick release Adjustable Rotating water holder cage Rack cage Advanced plastic steel materials,Super toughness and normally used will not easy to break 360  rotating design can be adjusted + QR design (design patent) To adapt to the fixed diameter 15 mm - 42 mm card buckle can be adjusted The fixed seat can be separated from the kettle frame, can be installed up and down the tube Remove the fast,may at any time remove the bicycle frame kettl,avoid theft