Color: Silver Material: Stainless Steel Package: Bag Locking: Key Inner Dia: 12 cm/4.7"   Female Size Wrist: 4.5 * 6 cm/1.8" * 2.4" (Inner Dia)   Male Size Wrist: 7.0 * 4.4 cm/2.8" * 1.7" (Inner Dia)