SUPER DURABLE AND SAFE: Made of 100% Premium silicone at Food Grade, BPA Free, Dishwasher Safe and non-toxic SIZE- 5 INCHES WIDE ON THE TOP 3.5 INCHES AT THE BOTTOM, 2 INCHES HEIGHT 0.5 INCHES THICK WHILE FOLDED-Each one holds exactly 1.5 Cups (12 oz.) of water without over flowing. Great for small and medium sized dogs either with food or water. Easy to clean, storage or bring-along on dog walks. COLLAPSIBLE DESIGN AND VERY HANDY-the bowls collapse completely flat, easy to storage, drop one in a backpack, hang it by your leash, put one in your vehicle, when you are on a road trip, dog park, hiking, camping, and picnic, etc.