Wombaroo Teat MTM - In-pouch kangaroos, wallabies, koalas. These latex teats are available with a sleeve to fit bottles with a neck diameter of 18-24mm. The 120 mL plastic wombaroo feed bottle fits these teats. Teats should resemble mothers; in shape and length for mouth comfort, fit and correct tooth eruption. Marsupial teats get longer as the joey grows, so progression to longer teats is important. Suggested uses for the various teat sizes and shapes can be seen in the photo, however individual carers will be able to decide which is the best for their individual animal.