Choke cleanliness is key to good performance: The compound angle-ported design used in kick's chokes is very aggressive in stripping away the wad, providing you with better pattern performance in the process. As a result of that aggressive stripping action, you will experience plastic and residue build up in the ports as well as on the exterior of the chokes. Slip 2000 is the best way to remove that residue and keep your chokes performing at their best. Slip 2000 is non-toxic, non-hazardous, non-flammable, & biodegradable. Best of all, it's effective. Simply shake the jar, drop your chokes in, & allow them to soak. You can soak them for a couple of hours, overnight, or even until the next time you go shoot. All of our chokes are made of stainless steel so you don't have to worry about the cleaner harming them. Once the chokes are done soaking, pull them out & brush them up with a brass brush or even an old toothbrush and you're ready to go. Slip 2000 makes the job of cleaning up your chokes a much easier task.