I bought this for my E2 Phil and Teds Stroller. As soon as it arrived I attached it to my stroller & was surprised to see only one side of the convertable bar had a rounded secure push button enforcer to lock into the stroller. It is, however, very secure and fits the Snugride 30. My only complaint...the convertable bar is NOT super user friendly to get on and off. It sticks some and takes two hands definitely. I suggest putting the stroller together while the kids are still secured in the car so that you have free hands .