Cork production is considered sustainable because only the bark of the tree is stripped to harvest the cork. The tree continues to live and grow. Besides, to produce 1000 cork wine-stoppers, 1.5 kg CO2 are emitted, compared to 14 kg of CO2 in plastic stoppers and 37 kg CO2 in aluminum screw caps. A sustainable, eco-friendly alternative to plastic mouse pads. Attractive and durable!