Wide Usages: The Sturdy Flower Pots Can Be Moved At Any Time To Facilitate Floor Cleaning And Easily Move Plants Outside To Avoid Sunlight. The Smooth Surface Roller Will Not Scratch The Floor.High Quality Material: Made Of Food Grade Pp Plastic, Safe And Non-Toxic, Durable And Corrosion Resistant.Storage Tank: Water Is Quickly Drained Into The Hole. After Watering The Flowers, The Excess Water Will Flow Into The Box, You Can Take Out The Box And Pour Out The Water To Keep The Floor Clean And Hygienic.Large Capacity: This Plant Storage Box Is Made Up Of Of 4 Durable Rollers And A Sturdy Structure. It Is Easy To Carry And Can Hold Up To 110Kg.Item Size: 1 Inner Diameter 24, 2 Inner Diameter 27, 3 Inner Diameter 30, 4 Inner Diameter 35 .Before Ordering, Please Make Sure Your Flower Pot Bottom Size Is Smaller Than The Tray Size.