Nailmatic's Bath Bombs Play and Making Set allows kids to create their own bath bombs safely and with fun! It includes 4 round molds, 1 pipette, 4 colored bags of sodium bicarbonate and 4 bags of citric acid, all biodegradable and non-toxic. Ideal for ages 7+, this set moisturizes the skin with vitamin E and sweet almond oil, while providing relaxation with chamomile extracts. It colors only the water, leaving no residue on the skin or in the bathtub, while offering a gentle fragrance.