Uses: Holder for water bottles or cans. It is compatible with most bottles (up to 7.8 cm in diameter). Universal holder for all beverage cans, many varieties of coffee cups, water bottles, coffee cups, etc. The front holder is suitable for all mobile phones whose height is less than 140 mm and thickness less than 14 mm. It has very good stability. Easy to fix: Fixed mounting on AC ventilation and can be easily removed. Multifunctional: Drinks are cooled by the ventilation in summer (when the air conditioning is working) and kept warm in winter.