Material:copper1pc ringPlease allow some error for manual measurement, thank youProper size and idea gift: you will get a good for both men and women. Home, travel, driving, swimming pool. Also a idea gift for your girlfriend, boyfriend, father, family and friends. and easy to use: the holder is made of copper, which is and durable, with nice hardness and rust resistance; It can be applied for a long time; Just need to put the item on the mouthpiece, and adjust the bracket for an exact fit, then wear the ring on your index finger; It is practical in use and chic in look up your hands: you can put the on the ring when you smoke, and then wear it on the index finger when you are texting messages, absorbed in a mobile game or tapping the keyboardDue to the screen display, and the shooting light is different, there may be a little color differenceVintage and Adjustable Design: The mouth is used to hold cigarettes, and the hand body is an adjustable ring. Looks cool and mightyElegant design: the top of the finger holder is in the shape of hands, There is a small ring to adjust the tightness, you can adjust the size of the bracket to accommodate different sizes of cigarettesDescription: Length Size: the inside diameter of 1.7cm，Height:7.5cm