A.M. Leonard Recycled Rubber Mulch Mat Tree Ring - 2 Foot Diameter Achieve a manicured look around trees without time-consuming maintenance Allows air, water, and nutrients to pass through, but effectively blocks weeds and grass Mixed with a special bark-colored binder and molded to form a tough, flexible mat 2-inch inner opening can be trimmed wider with a box cutter 10+ years life expectancy