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.● 2 in 1. It can be used as a trolley bag or backpack ● With PU wheels for easy movement ● Pull rod has 2 adjustable positions ● Breathable mesh fabric for air ventilation ● 600D Oxford cloth with PVC water-resistant coating ● Steel wire bracket form a stronger structure ● Inside safety strap for security ● Material: Oxford, Steel ● Overall Dimension: 42L x 25W x 55H cm ● Storage Bag Size: 35L x 20W x 42H cm ● Wheel Size: Φ4.5 cm ● Suggest Pet Max Weight: under 4kg D1-0011: ● Colour: Blue ● Door Size: 26L x 41W cm D1-0012: ● Door Size: 28L x 41W cm ● Colour: Red