Are you worried about too many things to carry when you go shopping or have a picnic with your child? Are you worried about how to hold your milk bottle, water bottle or worried about spilling water or drink when you go out with your baby? Are you worried about no place to put your bottles when you ride a bike? Don’t worry, just take this cup holder, it will help to release your hands when you go out. This is one of the must-have accessories for baby strollers, bicycles, wheelchairs, walkers etc. Installation Guide: 1. Gently unscrew the rotating shaft head first; 2. Then place the clip on the rack of the frame and select the best fit position and gently tighten the rotation axis head; 3. Adjust the cup to the desired angel of use; 4. Gently shake the cup after winding up to inspect whether it is clamped. Specifications: Material: Plastic Color: Black Weight: 0.5 lbs Cup Size: 5.5*2.75*4.2 inch What's in the Box 2 x cup holder If there is any problem, or you have any concerns, please feel free to contact us, we are always here for your service!