Wide application: Cup Holder for bike, scooter and wheelchair; Water bottle holder for walker, golf cart and beach; universal drink holder with net pocket and cord lock. Multi-function design: Not just a cup holder. It also holds a bottle, cell phone, wall charger and more to keep items organized. Size and fit: Collapsible bottle holder with waterproof and thermal insulation layer. About 7 inches high and 3.3 inches in diameter, fits most cups and bottles. Secure mounting: Two adjustable Velcro straps fit 1.5 to 2 inch roll bars. With anti-slip dot, it supports the weight and does not slide around. Insulation and heat protection: The drink holder adds a 4 mm insulation layer to keep drinks cold and to keep your water away from engine heat. Extras: Net pocket and cord lock for additional storage of small items and cords. Use scenarios: - On a bike or scooter during rides, keep your drink accessible and your small items organized. - On a wheelchair or walker, bring a bottle within reach and store cords or small essentials. - On a golf cart or beach cart, secure drinks and keep valuables close while traveling.