1.Portable & Foldable: This Dog Water Bottle come with 180 degree foldable design, compact size in 13.5cm natural length & 25cm length, super lightweight in only 0.16kg, you can put it in your bag or hang it on your hand with the top sling rope, very portable and convenient for outdoor and daily use. 2.Large Capacity & Wide Sink: The newest pet water bottle can hold up to 280ml water, quite enough for your pets during long time outdoor activities. Besides, the wide sink is suitable for most pets drink water, including the mudium and large dogs. 3.Safe Material with Filter: This Dog Water Bowl Dispenser is made of high quality BBA free food grade material, no smell and harmless; the insert activated carbon filter can adsorbs most impurities and removes residual chlorine, which allows your pet can drink healthy and fresh water anytime. 4.Leak-Proof: This dog water bottle has one key water locking design, together with the sealed silicone ring inside the cover, it can ensure no water leakage, so you no need to worry about wetting your bag or clothes. 5.Easy To Use: The water will flow into the bowl while pressing the water key, release to stop water;and while you finish feeding, keep pressing the water key and the water will flow back into the bottle, no more water wasted.