Check the listing for details. Syngenta Advion Roach Killer / Cockroach Gel Bait (Comes with Plunger and Tips). Color: Brown, Condition: New. Listed at 32.99 USD. Effectively combat your cockroach problem with Syngenta Advion Roach Killer Cockroach Gel Bait. This high-quality bait is specially formulated to attract and kill these pesky insects, both indoors and outdoors. Designed for versatility, the gel's brown color ensures it blends seamlessly with any home or garden décor, while its small size makes it perfect for targeted application in crevice and hard-to-reach areas. Each pack contains four plumps, ensuring you have multiple chances to rid your space of roaches. The gel bait's easy application process is enhanced with the included plunger and tips, facilitating a no-fuss setup. With no certification required for use, this bait is a user-friendly solution to maintain a pest-free environment.