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

These cups are great for your basic no spill cup.The spouts do wear out within 6 months and then they leak. Mostly that wear is due to cleaning with the wire spout cleaners. If you go too quickly it will tear through the slits and cause leaks.The kids live these, they fit well in their hands and I love the click lock keeps you from overtightening which will leads to leaking.The bright colors are a plus and they never leak from the threads which is a huge sell for me. Just take gentle care cleaning your spouts and all is well. Bonus because they are affordable too