Take your pets along on a biking trip with this 2-in-1 pull behind bicycle dog carrier. It provides an easy solution, so you don’t have to worry about having to use a leash or worry over straying pets. It's also a helpful way to allow pets enjoy the outdoors even if mobility is limited. The mesh windows on this bicycle pet carrier provide plenty of ventilation and allow pets to look around during travel. It also includes clear plastic roll-down window covers. The pet cabin enclosure measures 29. 25" l x 19. 5" w x 24" h and is accessible by a front or rear door. The front door opening is 14. 75" w x 20. 75" h while the rear door opening is 16" w x 17" h for access.