This cup holder attaches securely to a variety of mobility and transport devices including wheelchairs, walkers, rollators, scooters, strollers, bikes, and lawnmowers. It accommodates bottles and cups up to 85 mm in diameter, such as standard water bottles, travel mugs, and soft drink containers. The clamp adjusts smoothly between 0.55 and 1.7 inches wide, fitting most tubular armrests and frames without tools. Flexible rubber-padded jaws grip tightly while protecting surfaces from scratches. A 360-degree rotational design lets users position the holder at any angle for comfortable access. Internal springs hold containers firmly in place to minimize tipping or spillage during movement. Installation requires no hardware or assembly—just open the clamp, position it, and release. The durable construction supports daily use across indoor and outdoor environments while maintaining stability on uneven terrain.