Ultimate Army Style Men's Stainless Steel Grenade Pendant Ball Chain Necklace Dog Tag arrives with an extra long link chain & a gift box. Chains length is a 28 inches (71 cm). Chain can be adjusted to fit wanted measures. Dog Tag size: 1.55 Inches (4 cm) x 1.55 Inches (4 cm) Materials: 316 L Stainless Steel.