How do I assemble my Tommee Tippee Ultra bottle?

Tommee Tippee Ultra bottles are a unique shape, to assemble them insert the teat into the screw ring aligning the two indicators on the underside of the teat and screw ring. Next pull the teat through to ensure it fully ‘clips’ into place then screw this on to the bottle. Remember that you only need to remove the teat for cleaning;once the teat is clean you can place it back into the screw ring for sterilization.