Like the first Kiki Kiddo straw, the Kiki™ 6M+ Kiddo Straw is crafted from 100% medical grade silicone and is easy to use and easy to clean! The valveless design consists of two pieces – the mouthpiece and a straight straw that extends into the bottle. This versatile top can be used with or without the internal tube. The added internal sip guard makes it more spill- and toddler-proof. As with all products in the Kiki line, it is 100% plastic-free (unlike many other lines which use plastic components in their straw cups). With Pura, you can be sure you are always using the safest products for your child.