1. Material:Made of high quality PP plastic, durable and lightweight, can easily hold 4 cups of 50 80ml. 3. [Easy to use] The easy to open and collapsible design makes it easy to hold the bottle and fold for easy storage. 2. [CAPACITY]:Specially designed for large cups, perfect cups Trenta, Venti, large with a diameter of 3.5 inches. This cup holder is suitable for large drinks that are not suitable for small drinks and cups with handles. 4. Usage: For postmates driver, coffee, wine delivery, road trip, outdoor dinner.