The Metal : High quality 18 Gauge M Steel. Inner Diameter : Front to back 9 inches approx. Ear to Ear : 8 inches approx. Height : 16 inches from top to bottom approx. Circumference : 26 inches approx. Size : standard size, fits almost all adults. We reply within 24 hours. In case of any discrepancy arising out of our product, kindly do discuss it before leaving any Negative/Neutral Feedback.