Review on Secure Sipping Made Easy: Munchkin Click Lock Bite Proof Sippy Cup, Blue/Purple, 9 Oz, 2 Pack by Tina Price

I swear by this cups. They are our absolute favorite! And the only ones we use. My daughter is 15 months and she started using these around 11 months (I think). But she is a big thrower, these things can take a beating & still not leak. She has no problem holding them at all. She has also chewed on the mouthpiece quite a bit and you can't tell at all. They are super easy to throw in the dishwasher too, I just make sure I pop out that middle silicone mouthpiece part and wash it separately to get any food or gunk that may have gotten in the crevases. LOVE