TrustyPup travel Easy Explorer a Guaranteed On-Board airline travel Pet carrier is compliant with most airline's specific rules and regulations, allowing pet parents to travel with peace of mind. Designed for small dogs and cats, size of carrier is 18" long x 11" wide x 10. 5" high. This carrier has a patented spring form frame which will fit under most airline seats. TrustyPup gives pet parents the best of all worlds: TrustyPup products are designed to meet child safety standards and are backed by our 100% satisfaction. If a customer is dissatisfied with a TrustyPup product for any reason, we will replace or refund it.