Material: Metal Color: Sliver Insert Length: 18 cm/7" Dia:  S: 0.6 cm/0.23 inch M: 0.7 cm/0.27 inch L: 0.8 cm/0.31 inch XL: 0.9 cm/0.35 inch XXL: 1 cm/0.39 inch 3XL: 1.1 cm/0.43 inch 4XL: 1.2 cm/0.47 inch