iStyle Recycled Glass Organic Shape Hiball Glass 31.5cl Set of 2. Great for everyday use, parties and any other social gatherings. Made from 100% post-consumer recycled glass with no additives. The recycling process of a glass is a perfect circle and a clear example of sustainability. A lower temperature is needed to melt the glass and a lot of energy is then saved. Residues going to landfill are dramatically reduced and extractions of sand and raw materials minimalised. Each measures 12.5cm x 8cm approx.