SAFE AND HEALTHY: Made of BPA FREE food-grade silicone, this incredible water bottle does not pose any health risk, But we do not recommend using it for liquid which higher than 140F (60C) to avoid scalding your hand FOLDABLE DESIGN: Newthinking silicone water bottles can hold 16OZ water. Portable water bottles can be folded and save 60% space, fully collapsed the 500ML bottle stands only 4.1inchs tall and when expanded only 9.8 inches tall LEAK PROOF & EASY TO CLEAN: The travel water bottle designed with a silicone seal ring to prevent leakage. Wide mouth design makes collapsible water bottles easier to clean, or convenient to make flavoured drinks. When first use, we advise soaking it for 20 minutes with boiled water for thorough cleaning LOVE DRINK MORE WATER: Newthinking foldable water bottles provide children with different colours: blue, pink, and rainbow colours. Large water capacity at 500ml for children to sip throughout the day to stay hydrated. Let kids fall in love with colour water bottles and drink more water MEET MULTIPLE NEEDS: Newthinking collapsible water bottle is compact and lightweight, ideal for outdoor activities, travel and daily use. It can meet the unique needs of travellers, adventurers, outdoor enthusiasts, including bikers, hikers, campers, and everyone else