@maxs_mommy80 yes ma'am it is! My son isn't a huge fan of it, but he will drink out of it. He loves drinking out of a regular cup or a straw though. I def recommend the one with the handles though, I got it without & I think that's why my son doesn't like it as much.
We started them around 6 months, and now that's all she uses. We are working towards a regular cup, or the "360 cups." though. just haven't gotten one yet.
My doc said to not do the sippy cup thing, it's now recommended by the American dental association to let them drink out of a regular cup. I started my son at around 5 months with a regular cup and now have gotten him a 360 cup bc it's spillproof lol but it's basically a regular cup.