Material: Brass</br> Exquisite handmade, please allowed a little difference on each product.</br> A fashion accessory for smokers.</br> Adjustable, fits cigarette 0.2"/5mm to 0.3"/7.5mm in diameter.</br> </br> <b>Size Guide: </b></br> <b>Size S:</b>US 5.5, inner ring diameter: 0.6"/16mm, 2"/50mm in circumference. </br> <b>Size M:</b>US 6.5, inner ring diameter: 0.7"/17mm, 2.1"/53mm in circumference.</br>