Yunko Set of 4 Colorful Collapsible Cup - Foldable Cup - Travel Cup - Camping Cup Cup size: 170ml/5.8 fluid ounce, Folding Size: 3'' x 0.75''. The cups are ideal for travel, camping or to just keep one in your first aid kit or purse when outside Very durable. Made of 100% food grade silicone material (FDA approved), non-stick, flexible and easy to clean Lightweight, Compact and Collapsible, perfect for outdoor carrying. 1 Set contains 4 cups - 1 Green, 1 Yellow, 1 Blue, 1 Pink