Rollator cup holders designed with flexible flaps, which could adapt to any size of water cup to remain upright. Open sides accommodate bottles with handles, such as baby bottle with handle, cup with handle, etc.Flexible clamps with rubber pad, allows 360 degree as well. Could be installed on different styles of rollators. The clip of walker cup holder is suitable for the pushchair rod of 20-35 mm diameter and firmly clamp on the wheelchair rod to avoid sliding easily. You don't have to worry about your cup shaking due to the 4 flexible tabs design, makes your cups more stable even on a rough road.Multifunctional cup holder could be used for Rollator, wheelchair, mobility scooter, armrest, , kid bicycle, airport chair, office chair , lawnmowers and stroller etc.