SIZE ADJUSTABLEThe planter stand can be adjusted by a pullable buckle from 15-7/8 inches to 21-1/4 inches, rather than troublesome screw fixing, and the minimum diameter of the round hole is 7 inches, suitable for most types of flowerpots.Safty & DurableThis planter cart is made of high-quality ABS panel, stainless steel pipe, and dual-locking twin-wheels, moving smooth and labor-saving.Grid nonskid pattern increases the friction between plant pots and caddy, which can maintain good stability under extreme conditions.HEAVY DUTYMaximum load-bearing capacity of this plant caddy is up to 440 pounds, much higher than ordinary plastic planter bases, our plant caddy is strong enough to hold large and heavy planters or flower pot, or even some other heavy machines. Suitable both indoor and outdoor for moving big Christmas tree, garden pots, heavy plants, large potted trees, large vases, big Christmas tree, or heavy trash cansEASY TO ASSAMBLEAssembly is very easy and requires only 4 simple steps. There will be an instruction in the package, follow the instructions, a person just need about 10 minutes to complete the assembly. The package comes with a free screwdriver