Hello Melissa,
Thanks for stopping by planDisney with your question. Visiting
Magic Kingdom or any of the other parks in Walt Disney World with little ones is truly an unforgettable experience where you will make so many precious memories. Even though they won't remember the vacation, you will, plus you'll get to see the park through their eyes.
Walt Disney World is huge. You obviously need a stroller for your baby, and in my experience even the highest energy preschoolers have trouble with all of the walking that you'll be doing on your visit. It's not unusual to walk nine or miles per day. That's a lot for little legs, so a double stroller for the two kiddos is a great idea. Although I don't have your exact stroller, I've taken double strollers into the park before and see many guests doing the same. I looked at the measurements of your stroller and it
doesn't exceed the limit of being greater than 31" (79 cm) in width and 52" (132 cm) in length, and it's not a wagon, so you should be fine.
One thing you will notice, is that there will be a zillion other strollers that look exactly like yours. As guests leave stroller parking areas, cast members often move strollers to make room for new guests, so it's likely that your stroller will not be exactly where you left it when you get out of an attraction. Tie some ribbons around the handle, make a name plate, or decorate it in some way that will help yours stand out and make it easy for you to spot.
During your stay, be sure to locate the
Baby Care Centers in each park. Each one is a quiet air-conditioned oasis inside the busy park where you can feed your baby, change a diaper, or just take a little break during the day.
Hope this helps. Have a magical vacation!
Diane