Sporty pet owners will love the 2-in-1 Guardian Gear Cross-Trainer Pet Stroller. Can be pulled behind a bicycle or used as a jogging pet stroller. Sporty, stylish and durable. Large rubber wheels on the back offer comfort and control. Mesh and roll-down plastic windows for ventilation – and to give pets a great view. Comfortable, padded handle is great for long walks/runs Guardian Gear Cross-Trainer Pet Strollers are brightly colored with a safety flag for added visibility. Size: 27"L x 22 1/2"W x 37"H. Capacity: Holds up to 45 lbs. Tire tubing is 16" x 1.75" with a maximum inflation of 35 PSI.