If you have never used one, you will love them. If you have used one, you probably won't go back to your metal rods.
If you have a rifle that you have to clean from the muzzle because you can't feed a rod down from the breach, this will clean your rifle from the breach. (Think 10-22)
Prices range from 10.00 to 15.00.
https://www.midwayusa.com/s?promotionid=1100467I use bore snakes for my .22's, .223, 308, 30-06. I love them.