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. Silicone Collapsible Travel Bowls, Dishwasher Safe and BPA FREE, Great for a Road trip, Dog park, Hiking, Camping, and Pinic etc. SPECIFICATIONS: Material: 100% Premium Silicone at Food Grade 5" Diameter at the Top 3.5" Diameter at the Bottom 2" in Height And Only 0.5" (Half an Inch) Thick When Collapsed Light Weight: 2.16 oz(Each one bowl) OTHER ADDED FEATURE: 1. The PetBonus collapsable bowls have a hard plastic sturdy rim and a silicone base, heart shaped hole for hanging or attachment, dog silhouette in the base, solid thickness. 2. The bolws are safe for humans to use as snack bowls,if you just want a little snack while your watching TV, they will not break, and they can help you track how much you are eating. 3. The carabiner also makes it easy to hook onto the side of the back pack or wherever. 4. The bowls can be adjusted to different sizes by just pushing them as far or as little as you want. They have a little heart-shaped hole in the plastic handle for hanging if you wish. 5. For the dog we "unfold" the bowl to its full three tiers. For the cats, we unfold for two levels to keep it a bit shallower. 6. The bowls wash up good as you have placed in dishwasher and they just pop into shape. 7. Well Package, it is a great choice as a gift.