I introduced a Philips sippy cup
for 6-months son according to pediatrician advice. . They are very easy to clean. When I throw it into my bag, it never overflows. I like this very much. He likes to bite straw. It’s like... biting off the pieces. She can bite the straw, but I just cut it shorter. I did try every fancy and cheap cup there. These are by far the best. I think these are 4-5 months.