The E-Cigar of model YJ4902 is disposable. The physical size of the E-Cigar is 154mm long and 18mm in diameter. Each E-Cigar can be puffed about 1800 times. Its battery capacity is 1300mah. It takes place of real cigars and helps people to begin a new healthy smoking habit. Enjoy your cigar smoking experience anywhere. The product does not contain the thousands of toxins typically found in tobacco products.