Two different sizes come in this set, a 16-inch ball and a 20-inch ball, so a pair of planters gets height variation instead of a matched set. Each ball arrives as two half shells with interlocking connectors: clip them together, run the zip tie through the gap, trim the tail, and drop the ball onto a vase. Four layers of leaves in mixed shades of green fill the shape so no seam or gap shows from a normal viewing distance. Sun-protective PE keeps the color and stays free of odor and allergens, and the 7-pound pair needs no trimming or feeding. Flowerpots between 10 and 14 inches across hold them best. Use them on porch columns, a shop counter, or a wedding aisle where live topiary would wilt.