Petsfit Pet Carrier with Removeable Wheels,Soft Sided Dog Carrier, Not Fit Under Airline Seat Top openings for dog or cat to view the world with you during travel. Inner leash inside prevent pets escape Side pocket can store small goods and the dog carrier on the wheel base can be taken off easily for carrier use occasionally Top and 2 sides mesh doors ensure good ventalation and is easy for pets to access and out The rolling dog carrier provides comfort and extra room for your pets hen travelling. You can use it like a traditional luggage. Fleece mat included and can be packed flat for easy storage when not use and easy to transportation when needed