This straw pack is only compatible to the new version sippy cup - matte lid sippy cup in purple packaging.
Two spare straws and a cleaning brush - especially for the NEW b.box sippy cup.
New sippy cup replacement straws ONLY fit b.box’s NEW sippy cup, new straws will NOT work in the current sippy cup NOR will old straws work in the new lids. However, NEW lid is compatible with the current base. New replacements contain two straws, ONE weight & one cleaner.