Water beads! Ideal ammo for kids' water blasters. Fill your container with colorful beads. Universal beads, suitable for almost all blasters. A very large number of beads will provide many hours of fun. Water beads are completely safe, bursting upon impact, so you can use them indoors. Very easy to use. Toss the beads into a container of water. The most common size for blasters is about 7-8 mm. To achieve this size, soak the beads for about 3-4 hours. The longer they stay in the water, the more they swell, reaching larger dimensions. The beads are shipped in random colors, initially packaged in a plastic container measuring 7x6 cm.