If you have a bong or dab rig, you need some reliable bong cleaning caps to get the job done right. This 2-pack of silicone caps from Formula 420 include a large and a small cap, which are universal for most water pipes. These silicone caps create an airtight seal over openings, allowing you to shake up your pipe without leaks! Simply fill your piece with cleaner, cover openings with the caps, shake, and rinse thoroughly after you’re finished.
P.S. if your bong has a wide mouthpiece, the Formula 420 XL Cleaning Plug has you covered!