Color: Silver Collar Size: Female: 12 cm/4.7 inch Male: 14 cm/3.5 inch Wrist Size:  Female: 5.3 * 5 cm/2.0 * 1.9 inch Male: 6.3 * 6 cm/2.4 * 2.3 inch Material: Stainless Steel Package: OPP Bag Thickness: 0.8 cm/0.3 inches