This is the quickest, easiest system you'll find for defining an edge around your flower beds or garden. Simply pound each interlocking piece into the ground with a Rubber Mallet – in most soils there's no need for cutting, trenching, or tearing up sod. To turn a corner, just bend the sections in the middle to form the angle you need. Create a well-defined edge in minutes Gives a clean, finished look around plantings and garden beds Available in three heights: 4", 8" and 12" Each set makes a 20' long edge Made of durable, recycled polyethylene 12" for loose or sandy soils 8" for normal soils or deep weed protection 4" for hard-packed soils or flush edging Gardener's Supply Exclusive