Sealey cm4 corner transport dollies set of 4 150kg capacity sealey cm4 p these corner transport dollies from sealey are heavy duty and manufactured from high quality steel with a maximum load weight of 150kg ideal for moving awkward rectangular loads and provides increased mobility in locations where normal material handling equipment cannot be used each corner dolly is fitted with three free moving castor wheels for easy manoeuvrability and fitted with a rubber covered load area to help s