BioChum is a biodegradable fish attractant that comes pre-packaged in a mesh bag with a lanyard, and ready to deploy. It is super-saturated with fish-attracting scent that lasts a long time, and it's re-useable. BioChum chum bags come in a resealable zip-top bag, so when you're finished fishing, simply place it back in the storage bag until you need it again. No refrigeration required, and no smelly mess. Bring the big one's to your boat!