[. . . ] Read this user manual carefully before you use the spout cup and save it for future reference. [. . . ] -- Continuous and prolonged sipping of fluids will cause tooth decay. -- Do not sterilize any part of the spout cup in the microwave without using a microwave sterilizer. -- Thick, fizzy or pulpy drinks may block the valve and cause it to break or leak. Do not use the spout cup to mix and shake infant formula as this can clog the holes and cause the spout cup to leak. Storage -- For hygiene and maintenance, disassemble the spout cup (fig. Tip:The drinking top and bottle of the spout cup are compatible with Philips Avent Natural bottles. You can also contact the Philips Consumer Care Centre in your country. Guarantee and support If you need information or support, please visit www. [. . . ] 1) All parts are interchangeable, with the following exceptions: -- It is not recommended to use the spout cup of SCF753 and SCF755 on the 4oz bottle. [. . . ]