The Baby Jogger Infant Car Seat Adapters let you quickly and easily turn your City Tour 2 Single into a customized travel system. Use these adapters to attach your Baby Jogger or Graco infant car seat to your Baby Jogger City Tour 2 single stroller. • Fits only with City Tour 2 single and City Tour 2 Eco single strollers • Only compatible with certain Baby Jogger and Graco infant car seats. Baby Jogger - City Go 2. Graco - all SnugRide infant car seats, Turn & Slide infant car seat • These car seat adapters convert your City Tour 2 single or City Tour 2 Eco into a travel system with certain Baby Jogger or Graco infant car seats. • No tools required to install