Source: https://www.amazon.co.uk/Munchkin-Miracle-Trainer-Green-Ounce/dp/B00MRZIFD0/ref=sr_1_2_s_it?tag=parentsneed02-21&s=baby-products&ie=UTF8&qid=1472973716&sr=1-2&keywords=Munchkin+Miracle+360+Sippy+Cup