This kit typically comes with 3 block sections. But, I ordered this kit with one more section of Beuta Block so that my ring diameter was 63 inches. I wanted to have more room for growing flowers in the tree ring. This product was very easy to install, and the block sections are easy to join together and bend into a circle. Much less labor intensive compared to installing a real stone ring from cement blocks. My neighbors are already giving me compliments on how much better it looks in my front yard.