Safe and reliable: These colorful water gel beads use the same polymer that is in babies? diapers. In the water, they will magically grow into colorful marble-sized water pearls. Ten kinds of colors: Yellow, Red, Blue, White, Clear, Black, Purple, Pink, Green, Orange. They help your children recognize colors and numbers. Two sizes: 10-13mm, 13-15mm. Abundant colors and different sizes enhance your children?s perception of size and their ability to identify colors. 12oz Value Pack of water pearls: Makes 12 gallons or 45L of water gel beads. 12 gallons of water pearls are sufficient for your child?s medium-sized party. Important Questions and Answers. Q: 12oz beads can be used to make how many liters or gallons of water pearls? A: 12 gallons or 45L of water growing beads. The floral beads require soaking in water for 6 hours. Water gel beads will grow up to 13-15mm or 10-13mm. Q: How to hydrate the Water Gels? A: 1 L/1 quart/32oz of water: 1.5 tsp beads 64oz of water: 3 tsp beads 1 gallon of water: 5 tsp beads Services We save you time when preparing activities by exclusively providing services for water gel bead usage. We can answer your questions within 12 hours. Please use Customer Questions to ask a question. You only need to provide the vase?s diameter, height, and quantity. Specifications: Color: colorful Weight: 12 oz Bead Size: 2.0-2.5 mm in diameter.