Erosion might be a sign of a lack of water, but in a Concrete H2O Absorbent Coaster in a Dry Land design, it's a sign of high water absorbency. This drink coaster is composed of a mixture of non-toxic recycled ash and cement that makes for a surprisingly excellent coaster! The dry land design is reminiscent of a modern design, but it's also intended to make an eco-statement, that small gestures like this absorbent coaster can have an impact on reducing waste. Say something about recycling without saying anything at all, with a Concrete H2O Absorbent Coaster in a Dry Land design!