I ordered this for my science classroom. Kits came in and I packed them away until the chemical change unit. Totally forgot what they were, as they are unlabeled. Make sure you label them when you receive and unpack them. The luminescence lasts a while and students are in awe of it. Much better than experiencing a endothermic or exothermic reaction.
It was an amazing kit very bright Andy 8th grade student loved it, the only downside is the amount I wish it could have a little bit more. Still a five star though.