Feature: Portable Silicone Pet Travel Water Bottle For Dogs and Cats Material: silicone, PET, ABS Size: 20.0 x 8.5cm Capacity: 550ml Color: blue, grey, orange, green. The silicone top quickly flips up to create a cup for your dog to lap from as you gently squeeze water from the bottle. When finished drinking, easily flip the top back down and you're ready to go again. Removable top can be washed and easily attached to larger water bottles, it fits all diameter 30mm & 38mm bottles. The bottle top's durable silicone construction means that they can be rinsed or wiped clean after use. Treat your Pet to a refreshing drink anytime and anywhere, without worrying about bacterial transmissions. The bottle is great for walking and travelling with you dog. The included bottle clip can be attached to your backpack, purse, dog travel crate, stroller, etc.