Water glass - Made of 100% sturdy Kohoba wood, all hand-crafted, non-toxic, supporting your simple, healthy, and eco-friendly way of life.Tested and healthy food-safe top-coat protects the wood from natural decay and dry-wood termites and the surface is covered with premium quality food-safe polish without adding any chemical which makes it hygienic and food safe. Quality is long-lasting as every single product has passed various quality checks.The surface of this product is very smooth and it’s hard to get stains so you did not need to make effort to remove stains. We poured hot tea on this and not a single stain remains even without a wash. Diameter Top 7.5cm and Bottom 6cm.Capacity 300 ml and Height 12.5cm. 100% biodegradable.They are eco friendly, non-toxic, and lightweight. 100% Sri Lankan product.Helps to make a plastic-free world.please keep dry after use.