CraZart Shimmer 'n Sparkle Rainbow Popping Bath Bombs Shimmer ‘n Sparkle Rainbow Popping Bath Bombs is a fun DIY bath bomb making kit. Kids get to take bath bomb mix and create their own colorful rainbow bath bomb shells then fill them with yummy scented popping crystals. When they are dropped into the bath watch as they fizz into a colorful bath then wait until the crystals start popping for a fun bath experience. This is the perfect kit for birthday and holiday gift giving. Rainbow Popping Bath Bomb kit makes 1 bath bomb at a time and it comes with 6 drying trays so you can pre-make all your bath bombs in advance, or make them and give out to friends. Shimmer ‘n Sparkle Rainbow Popping Bath Bombs comes with bath bomb mix pouches, popping crystals, scent bottle, 4-piece bath bomb bowl mold, 6 drying trays, spoon and instructions. Shimmer ‘n Sparkle Rainbow Popping Bath Bombs is great for ages 8 and up.