12 oz capacity Leak-proof, antimicrobial silicone straw Vacuum insulation keeps drinks cold BPA free, made of durable stainless steel and silicone Hand washing recommended This fun Bluey straw tumbler will keep kids hydrated without any fuss! You can prevent messes and spills with a cup that won't leak: the attached straw has a valve that allows easy access to water, but won't drip when the tumbler is tipped over. The straw is also made from antimicrobial materials, to help prevent the spread of germs. A screw-on lid means a secure fit, and vacuum insulation will prevent condensation from forming on the outside of the cup, in addition to keeping drinks cold. Perfect for young toddlers graduating from sippy cups, this tumbler features colorful artwork of favorite characters to make hydration fun.