Oh... there's more than 6 I promise. There's the guy who gets pissed when he's not the only one there. There's the instructor and there's the former military guy who thinks he knows it all because he had a gun issued to him in WW2
DIY Ballistics Gel. I have no idea what I would ever need this for.... but I'm sure at some point one of my children will have a school project this would be perfect for! That and I just think it's cool.