Choco Nose H258 Modern Pet Portable Water Bottle, Small-sized Dog (Up to 12 lb), Cat, Rabbit, Small Animal Travel Drinker, BPA Free, No Drip, 8 Oz. Nozzle Diameter: 16mm The Cutest Ever- A stylish yet practical pet water feeder Lightweight- Perfect for the outdoor activities Eco-Idea- Nozzles can fit most regular PET bottles Water Lock- Gives you security on the water control US Patent- Patented leak-proof nozzle / BPA Free