This puppy carrier is a great accessory to have. The cat carrier is made with a sturdy frame and oxford cloth to make it lightweight and secure, can be used as a trolley or as a back pack. Comes with an extendable handle and wheels for easy movement. This dog carrier is comfortable for your pet and a great item for your travel needs.Features:2 in 1. It can be used as a trolley bag or backpackWith 4 detachable PU wheels for easy movementPlastic pull rod has 2 adjustable positionsBreathable mesh fabric for air ventilation600D Oxford cloth with PVC water-resistant coatingSteel wire bracket and aluminum alloy tie rod form a stronger structureInside safety buckle lock for securityWith 5 nylon zippers for smooth opening and close