Give any tree the perfect finishing touch with the Artificial Block Edging Kit - Tree Ring. With a lightweight design, these faux rocks are easy to position.The Artificial Block Edging Kit - Tree Ring comes with everything needed to give a tree an eye catching border. The kit comes with 16 blocks that create a ring that is 52" in diameter or 12 linear feet of edging and ground stacks. Each block is made of durable polyethylene that is resistant to impact and line trimmers. Weather resistant construction ensures these blocks can stand up to the elements. All blocks are lightweight so they're easy to put in place, simply stack blocks in the desired position and cover the flange with sod or ground cover for a seamless look. The stones are also eco friendly as they are made of recycled materials. Choose to use these stones in a curved or straight line.