Paintballs (paintball bullets)
A paintball is a spherical capsule with approximately 17 mm in diameter, containing liquid paint. These balls are very similar to the aroma beads used in the bathroom. The materials are designed so the outer visor and the color is non-toxic, non-caustic, water soluble and biodegradable. The color can removed easily from clothes and skin with water. Paintballs have a big variety of colors. When a ball hits a player, the thin outer visor breaks and the inner color makes a stain at the player. This player has to go out of this game and wait until the beginning of the next one.