Durable, all-plastic construction, easy to clean and provide long life. The swing top provides easy access for trash disposal and then swings back to hide trash from public view. Blue top has special slot for paper. Green and brown tops have round 4-5/8" diameter holes to accept metal cans and glass bottles. Gray and yellow tops are for general refuse. Optional linking trolley moves multiple units in one trip or can be used individually as a dolly. Trolley accepts both sizes of containers.