ColorMaster CM101 works with manufacturers horizontal grinders forwood . Attaches to fender of trailered grinder. Consists of a pump, multiple hoses, and up to 19 colorant nozzles, all powered by grinders hydraulic system. Two, adjustable controls regulate color and flow according to material and job conditions. Liquid concentrate penetrates wood fiber to produce vibrant, long-lasting color. Shipped in totes or barrel, pigment dilutes completely into water stream to assure total coverage of color onto mulch.