Randy's Black Label Pipe Cleaning Solution takes all the effort and frustration out of cleaning your pipe. Simply dip your pipe in a few ounces of Randy's Black Label and swish it around... Watch as Randy's goes to work dissolving and removing burnt on tar and resin. Randy's gets into all the nooks and crannies that traditional pipe cleaner can't. Randy's works great for all pipes and won't damage sensitive designs or materials, but it literally destroys tar and resin right where it sits.