40MM Unisex .925 Sterling Silver "Army, Marines, Navy, Air Force" Military Rim Dog Tag with 2.5mm Ball Chain Bead Link Necklace 16", 18", 20", 22", 24", 30"in METAL: .925 Italian Sterling Silver STYLE: Military Rim Dog Tag with 2.5mm Ball Chain Bead Link Necklace PENDANT LENGTH: 40mm PENDANT WIDTH: 25mm CHOOSE CHAIN LENGTH: 16in, 18in, 20in, 22in, 24inches