Move large plants easily with the Gardman Heavy-Duty Plant Caddy. This sturdy metal, round caddy can hold square, oval, or round planters. The four wheels are connected to the caddy by metal support rods, which gently curve into the interior circle, beautifully combining form with function. For safety, one wheel has a lock so the caddy does not accidentally move around. The wide base holds potted plants up to 8.5″ diameter. The durable black epoxy finish withstands years of use. 4.5″ H. The 10″ dia caddy holds potted plants up to 8.5″ dia.; and the 13″ dia caddy holds potted plants up to 10″ dia.