What is a leak cloth anyway? Most people don’t know it yet. A cofferdam or also called a lick cloth is a small tasteless very thin latex cloth that you can put over your anus while licking the other person. STDs such as HP virus, gonorrhea, herpes, etc. and intestinal bacteria can be transmitted during rimjob. If you want to protect yourself and don’t want to miss out on the rimjob, simply place a Beffy lick cloth over your anus. Lick cloths are also used by women who have sex with women. The Beffy lick cloth is rectangular and the size of an A5 paper and it is extra thin. It is best to use a water-based lubricant with the Beffy lick cloth. One package of Beffy contains 2×2 lickcloths. Beffy is not a contraceptive. Store in a cool and dry place. Have fun with your rimjob. bottles.