The Twistshake cup range tops are interchangeable which means that you can use all the tops on all the bottles. Grow with the Twistshake cup range and use the tops that are most suitable for the moment. all Twistshake cups are spill-free. The silicone insert makes sure that ﬂuid only exists when the child is using the bottle. Twistshake saves you the cumbersome tasks of cleaning after your little ones so that you can spend more time together. infuse water with fresh fruit. A new and nutritious drink for baby. Patent pending solution for a healthy and fresh drink.