HOLD UP TO 600 POUNDS: (Please check the size carefully,22inch and 8.8 lbs)The metal plant caddy with wheels perfect fit for moving large plant and trees in your lanai during heavy winds,or making any task like cleaning the balcony or watering surrounding heavy potted plant a breeze.Moving plants into the shade in the Summer or garage for the winter is easy with this roller tray PREMIUM QUALITY INDUSTRIAL SWIVEL CASTERS:The 22-inch square plant base has 4 heavy duty industrial casters,two of which are lockable.They roll easily,smoothly and quietly which is easy for one person to move around and keep it from hurting the floor.And the wheels' locks keep your plants in place HEAVY DUTY WITH 4-SCREW FIXED CASTERS:Four screws firmly secure the caster base to the caddy frame, eliminating wobbling or shifting—even when bearing the weight of your heaviest potted plants, large planters, or towering foliage.Unlike single-screw alternatives, it resists wear, loosening, and structural failure, ensuring your caddy stays reliable season after season-no fears of casters detaching or caddies collapsing RUST-PROOFf GALVANIZED STEEL – Tackles Rain, Sun & More: Made of premium galvanized steel, this stand fights rust and corrosion, even against heavy rain, intense sunlight, or humid outdoor air. It’s tough enough for patios, gardens, or backyards—keep it outside year-round without worrying about weather damage EASY ASSEMBLE ONLY:The only assembly needed is to screw the wheels onto the base,very easy to assemble in 3 minutes without instructions.One tip:2 lockable casters would be better assembled in diagonal position.Once 4 wheels assembled and ready to use SO VERSATILE FOR DAILT USE:These caddies work perfectly for heavy to move potted plants.Actually,can be used move other items such as lamps,machines,wine barrels or anything that fits on the plate.They easily roll the heavy containers for filling and moving to somewhere 22" Metal Plant Cadyy Heavy Duty,1-Pack