Some laboratory applications require strains that are fewer passages from the original reference culture. For those special instances, we offer KWIK-STIK Plus, which combines microorganisms that are just two passages from their reference strains, with our signature KWIK-STIK format. Each device features a qualitative lyophilized microorganism pellet, ampoule of hydrating fluid and inoculating swab; so everything you need for growing control cultures is included in one handy device.