Empty The Tobacco Out Of A Few Cigarettes In Each Pack And Roll Little Joints That Are Shorter Then The Cigarette Paper. Insert A Small Joint Into The Emptied Cigarette And Then Pack The Cigarette Full Of Tobacco Again Till You Cant See The End Of The Joint... Once You Have As Many Packed As You Think You Will Need Put Them Back Into The Pack And Pack Them Like You Would After You Buy A New Pack. Pull Them Back Out And Make Sure The Tips Look Fairly Legit And Your Ready To Fly.....i Fly To China Very Often And This Has Never Failed For Years.