Environmentally Friendly: Poly is High Density Polyethylene (HDPE), a recyclable plastic derived from post-consumer waste such as milk and detergent bottles. This material is cleaned in a decontamination process to a purity level of over 99% HDPE, then compounded into solid board stock material. The resulting product contains over 90% recycled post-consumer waste by weight. Will Not Deteriorate: Exceptional resistance to moisture, fading, insects, splinting, warping and other hazards of environmental exposure common to wood or wood fiber composite products. UV Stabilized Color: High color stability UV pigment systems which minimize material breakdown from prolonged sun and weather exposure Essentially Maintenance Free: Requires no waterproofing, staining, or other similar recurring maintenance other than an occasional washing with soap and water or our poly furniture Cleaning Kit.