Smartly designed pet stroller features construction details other strollers don't have. The mesh closure in front is ideal for keeping out bugs when necessary, but on most strollers, it zips down into the pet compartment, taking valuable space away from your pet. On this stroller, however, the Smart-Canopy Mesh opens up and stays neatly tucked right under the top of the canopy. You won't even notice it's there. To close or open the mesh with ease, this stroller features pre-threaded zippers on both sides. No fumbling to thread the zipper when you're in a hurry. Smart-Basket underneath stroller is enclosed with a rear zipper to prevent belongings from coming out if you go over bumps. The Smart-Reach handle design gives you more kick space when you walk. The 6. 5" front wheels swivel and feature shock absorbers, but also can be locked for rough surfaces or running with pets. The 8" rear wheels feature shock absorbers and a one-step break lever that locks both wheels at the same time. Inside the stroller, pets ride comfortably on a removable, machine washable poly-filled nylon pad. Two interior tethers let you take along two pets safely. For pet owner convenience, a parent tray offers 2 cup holders and accessory storage. Also, the entire stroller folds down easily with a Smart-Fold mechanism on the handle. Durable steel frame with nylon compartment. Pet compartment measures 25" x 13" wide x 21. 5" high. Stroller height to handle is 40". For pets up to 50 lbs.