The new, bite-resistant glass features an extremely durable but soft mouth, not torn by even the most persistent cheaters. Finally, a bite-resistant glass that does not irritate the gums. The orifice is durable but not tough. Our new Click Lock glasses come with a soft, bite-proof, non-drip nozzle - 100% guaranteed! In these innovative glasses, the lid secures without dripping. You can see, hear and feel that the lid is locked, so you can be sure it is not running or dripping. With 100% leakage replacement warranty. Safe and secure - the glass you've always been looking for. • Water, milk or juice capacity: 296 ml • Soft, bite-resistant nozzle - guaranteed • No margin of error - click-secured • Easily washable one-piece valve • Without BPA