Hard-Sided Transporter Dog Carrier Cage,Plastic Kennels Rolling Wire Door Travel Dog CrateProduct description Hard Two Door Pet Carrier Product SpecificationsS: 48*31*30CM without wheel,M: 57*36*33CM,L: 66*46*47CM with wheel,XL: 80*56*65CM with wheel,2XL: 100*66*80CM with wheel Product MaterialPP plastic+iron Please note that: As the requirements of each airline are different, we can't guarantee that all sizes can be on the plane. If you want to buy an airline case and bring a pet on the plane, please confirm the standards of the airline