Application scenarios,specially designed for strollers and bicycles without bottle cage mounting hole.you-can place it virtually on your bike.the bottle cage can be quickly installed on the frame,handlebar,and seat-tube. With 1 pair adapter to fit your bike and makes it stable and heavy duty. Wonderful,sweet warm for friend family or yourself. Safe and firm,the bottle cage mounting seat-is scientifically designed,the surfac friction is large,and the belt has good tensile,and it is not easy to fall off even it strong vibrations. Green-and environmental,the bike bottle cage mounting base is and harmless green materials,allowing you to enjoy a green-and while traveling with low-carbon.