Collapsible Folding Silicone Travel Camping Cup- 200ml FDA Approved Food Grade Silicone - Versatile, Durable & Eco-Friendly (Set of 4) FOOD GRADE SILICONE material which is FDA Approved, odor-free, non-toxic, non-stick and easy to clean for maximum hygiene. HIGHLY ADAPTABLE to all types of liquid foods and beverages, whether hot, cold or even frozen without deforming TEMPERATURE RESISTANT between -28 to 428 Degrees F, in addition being flexible and completely unbreakable. GREAT FOR OUTDOORS- this 3 1/2'' cup with 200ML capacity collapses down to only 1'' when not in use; set of 4, ( 2 green, 2 red) COMPACT AND LIGHTWEIGHT construction makes the silicone collapsible cup easy and convenient to travel with.