Instep Rocket Aluminum Bike Trailer 2-child bicycle trailer with 20-inch, fast-rolling, rustproof rear wheels Aluminum frame with outrigger design protects cabin and wheels Universal coupler attaches to almost any bike; 100-pound capacity Converts easily into walking stroller; weather shield and screened canopy Measures 52 x 36 x 35 inches (W x H x D) and weighs 29 pounds