The package includes: glass nuggets approximately 100 units, weighs approximately 0.45 kg, fill 1 1/4 cups or 0.3 liters of volume. Each diameter is approx. 15 - 18 mm. Good quality: Crystal stones are made of pure and transparent glass, not toxic and tasteless. The flat marbles do not swim in the water. Translucent glass stones: these transparent decorative stones shine in the sun. These attractive flat marbles will be a beautiful addition to floral arrangements, crafts, vases, candles and much more.