Each package contains absorbent felt scent dispensers that can be used with any H.S. liquid scent. The porous material of the ScentWick will absorb the liquid and allow wind currents to pass through carrying the scent to the buck's nose. They work great when hung from a tree branch above a mock scrape. - ScentWicks are reusable; just store them in the odor barrier bag until you need them again. ScentWicks are available in 4-pack and 8-pack sizes.