The Maxx Pro Double Kids' Trailer can carry two children and can handle a weight of up to 45kg. It is made from alloy, so it is incredibly lightweight and durable. It has 20" smooth wheels. You can convert this trailer to a stroller with the stroller kit. The stroller kit is not included and retails at $99. It has a waterproof shield which can be rolled down the front to protect the little 'uns from wet and mud.