The pet rider bicycle seat comfortably lets your favorite pet ride along with you. Each pet rider comes with stitched in high-visibility reflective tape for added safety during your bike travels. Machine washable black quilt and fleece. Securely straps to rear bicycle carrier and frame. A strap is provided to secure your pet to a harness. Outside: 19-inch by 16-inch by 10-inch; inside: 15-inch by 12-inch