I'm one for "trying" to keep heads and tips neat and make sure they get put back in the right place. The Airflo head bag will help in the madness of tips and heads wound up in my pack or in my waders pouch. The overall size is 8"x10" and the pages are 6 1/2"x7", so its compact. Airflo heads come in a page instead of a spool so you can add them right in. Retail is about $16.00 on the bag, with extra pages are $1.00.