his device is a hand operated smoking device, made to smoke for you.(Must be in a rolled form)This product is resistant to wind & water being how the smoking material is in a bottle. (reduces the chance of fire , and lowers the smell transferring process) Cuts down on the passing of germs, by streaming smoke out of the device, with a pumping hand motion(NO SUCKING)how hard and fast you pump regulates the amount of smoke, just inhale softly. If you stop pumping the lack of fresh oxygen will extinguish the smoking material.(put out)