Hi there Yesenia, and thank you for stopping by planDisney with your great question!
If you have little Mouseketeers that will be visiting with you, a stroller is an absolute necessity since it can be a lot of walking for little legs!
Guests are welcome to bring their own strollers as long as the strollers are not larger than 31" wide x 52" long. Stroller wagons, wagons, and any trailer-like object that is pushed or towed by an ECV, wheelchair or stroller are not permitted. As long as your stroller bicycle trailer fits into those requirements and essentially converts into a jogging stroller you should be fine. You could always
reach out to Guest Services prior to your trip and speak to a Cast Member as well if that puts your mind at ease!
Whenever we bring our stroller, we love to tie a brightly-colored ribbon around the handle so it's easy to spot in the stroller parking areas. There are so many strollers that look alike, we try to make ours as distinct as possible to avoid confusion for others! We've also purchased a balloon in the parks and tied that around the handle, it's just another great excuse to buy one of the beautiful balloons!
I hope this information was helpful for you Yesenia, and if you think of any other questions before your trip,
please come back and ask!
Have a magical day!
Melissa