I'm a bit confused. Are these kits for your own use? If so the inventory( along with your own memory) tells you what the kit contains.
If the kit is for others to use, again, the inventory. If the note is for info during a crisis, well then ya got whats in the kit to operate with and thats all.
If the note is for when you give the kit to someone as a gift, it makes all the sense in the world. " Here, this is for you because I care. Check it out carefully."

Scott