THE WASTE WATCHER DOLLY SYSTEM LETS YOUR COLLECTION PROGRAM CHANGE AND GROW AS YOU NEED IT TO UL STYLE""MARGIN-TOP 0PX; PADDING-TOP 5 PX; PADDING-BOTTOM5PX;"" ALLOWS FOR EASY SERVICING OF YOUR CONTAINERS FITS ALL WASTE WATCHER® CONTAINER SIZES DURABLE METAL FRAME STURDY PLASTIC SWIVEL CASTERS COME STANDARD COMPATIBLE WITH WASTE WATCHER® AND WASTE WATCHER® XL DOLLY EXPANSION PACKS FOR INDOOR USE ONLY.