The 70mm Zen Adjustable Rolling Machine is made of high quality acrylic with perfectly sized aprons that are made of an extremely durable material that will last a lifetime. They will not stretch with age and are coated with a special material to prevent the cigarette papers from tearing. Each of these rolling machines is carefully designed and inspected to insure that they operate smoothly and always create prefectly rolled cigarettes. Don't settle for sloppy, hand-rolled cigarettes when you can hand roll your own factory quality smokes today! Try these today, you will love them.