ALEX Spa Sweet Escentials Diffuser lets your child create a relaxing environment by mixing fragrance oils to create a unique aroma for their room. Enjoy one of the 4 includes scents, vanilla, lemon, lavender or jasmine, or use them to mix up your own signature scent. The included recipe book has mixing suggestions as well as space to write down your own combinations. Just mix your scent, insert the wooden reeds and press a button to activate a color-changing light for added ambiance. The light requires 2 “AAA” batteries (not included). Includes a light-up diffuser device, 12 wood rattan reeds, 4 jars of fragrance oil (0.34oz/10ml each) and a recipe book. Recommended for children 8 years of age and older.