Cotton Cleaning Tips For Pipes Keep your dab rigs and water pipes spotless with these cotton swabs from Piranha. Piranha Slick Tip swabs offer a new innovative spin on cleaning down stems, bowls and pipes. Piranha Slick Tips feature a pointed side for getting in those tight edges and a round side for mopping, making every nook and bend easy to cleanse. Dab Swabs Features: Pointed Side for Edges Round Side for Mopping Made of Bamboo and Cotton 300 Slick Tip Swabs per Pack