Universal and Multifunctional: This cup holder with an integrated phone mount is suitable for use on walkers, wheelchairs, bicycles, strollers, motorcycles, boats, scooters, treadmills, golf carts, trolleys, lawnmowers, ATVs, shopping carts, kayaks, armchairs, beach chairs, and more.Wide Compatibility: This stroller cup holder accommodates various containers with a diameter of less than 85 mm (3.35 inches) – such as baby bottles, water bottles, coffee cups, beverage bottles, and drinking glasses – as well as mobile phones up to 3.35 inches in width (even with a thick protective case).Adjustable Clamp Design: The clamp width is adjustable from 0.55 inches to 1.58 inches, making it suitable for any handlebar or frame tube with a diameter between 1.4 cm and 4.5 cm.Secure Grip and 360° Rotation: The tight locking mechanism and built-in ABS plastic inserts hold your cup firmly in place and prevent it from falling out even during bumpy rides. The 360° rotatable design allows you to adjust the cup holder to your desired angle.Quick, Tool-Free Installation: No complicated installation required! This cup holder can be easily clamped onto a handlebar or frame in just a few seconds, making it an essential, hassle-free accessory for parents, seniors, and commuters.