Whether purchasing a new spa or just need to restock on supplies, our Amerse Nature2 Cense Start Up Kit features everything you need! This kit features the Nature2 Mineral Stick, an eco-friendly, low maintenance alternative to heavy chlorine or bromine, along with Cense Aroma Therapy shock, the only non-chlorine oxidant that offers the stress-relieving benefits of aromatherapy with a crystal clear spa experience.