SIZE & MATERIAL: These Zak water bottles have a 16-ounce capacity, measuring 4.33 by 2.78 inches wide and 7 inches tall. They're made of durable, break-resistant plastic, and recommended for children age 3 and up. EASY TO CLEAN: These travel water bottles are top rack dishwasher safe, and with the removable straws and silicone spouts, the lids can be disassembled for thorough cleaning. HYGIENIC SPOUT COVER: Keep the spouts clean in the house or while you're traveling-the spout covers protect contact surfaces and have flip-up locks to keep them closed, preventing leaks and spills. When it's time to drink, the action lids allow one-handed operation, and the spouts easily pop up at the push of a button. FEATURES: The leak-proof water bottles have comfortable silicone spouts that are easy for kids to drink from and screw-on lids that prevent splashes and mess. They fit in most car cup holders for convenient travel. LIFESTYLE: Staying hydrated is an important part of bei