Self Defense Steel Ring Spike Window Breaker Emergency Rescue Survival Tool - Tophatter's Inc. Weapons Store OnlineStainless Steel Spike Ring Necklace Window Breaker Emergency Survival Rescue Tool. With the stylish appearance design can be hang around the neck as a necklace, a wonderful decoration in daily life. Features: Fast and easy put on, emergency situations can be worn on the finger High quality stainless steel Protect yourself from harm in an emergency Nice and fashion accessory, exquisitely gift to others With the stylish appearance design can be hang