Collapsible/Portable Travel Pet Carrier Animal/Dog/Cat Measures 20"L x 14"W x 14-3/4"H and Accommodates Pets Up To 25 Lbs. The inside dimension are 19-1/4L x 12-1/2W x 14-1/4H Meets all standards and regulations for airline travel Easily folds to a briefcase size. Easily collapses to 4-1/2 Dual door hinge; Easy locking system Ships Signature Required