Biodegradable marking flags are non-toxic to humans, animals and the environment. City utility crews use the flags to mark underground utiIity lines so excavation teams don't damage pipes and create hazardous situations. Flags are color-coded to APWA requirements, and are made of nonwoven cellulosic material derived from wood pulp with a 24-inch wood staff. The product has an outdoor lifespan of about six months, after which it naturally degrades into the environment. Flags are available in five colors and may be purchased blank or printed with biodegradable ink.

Carlton Industries LP, La Grange, Texas
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