ResinStone is a 40 year old proprietary blend of stone tacum, high performance resin and fiberglass reinforcement to create what Amedeo Design calls a "Lifetime Purchase." Amedeo's ResinStone products are both repairable and maintainable. As all of their colors are incorporated throughout the product, all surface abrasions can be erased via either sanding (lead gray & charcoal) or though application of acetone to the discoloration. If there is a larger abrasion or chipping, contact them and they will send out a repair kit to return it to "like-new" condition. ResinStone is uniquely manufactured to produce stone-like quality in which Amedeo Design provides a lifetime guarantee and warranty. If anything undue does happen to the product and damage is experience so extensive as to be beyond customer self-repair, just ship it back to them and they'll fix it for free!