Gardeners Blue Ribbon Rolling Plant Caddies are sturdy durable and so easy to use, With four heavy-duty castors they give strong support when you move heavy potted and container garden plants while they protect your carpet rugs and floors, Caddies contain built-in reservoirs to help keep your plants out of the water, Fully assembled they are ready for you to start decorating your home and gardens, Product Specifications: Easy to use Four heavy duty castors Built in reservoir Fully assembles ready to use Protects rugs carpets and floors 13inch in diameter SKU: WDSC074