This instep take 2 double bicycle trailer has two 16-inch wheels with molded rims for a smooth ride. It has a 3-point, safety harness and carries up to 2 children, weighing a total of 100 pounds combined. It has a 2-in-1 bug-screen and weather-shield canopy to keep your children protected. This blue and gray, kids' bicycle trailer has a folding frame and quick-release wheels for trouble-free storage. It has a metal frame and comes with attachment hardware for easy set up. This bicycle trailer attaches to most bicycle stroller kits, which are sold separately.