With this brilliant clip-on tote for the Mountain Buggy Duet Strollers, you can turn your stroller into a luxury convertible for your growing family. It enables your Mountain Buggy Duet or Duo to convert into a viable single stroller solution. You will love all the extra room and your seated child can reach in the bag while they're going for a ride and grab his own snacks or toys. Extra room allows for storage of larger items as well.