Carabiners are a great way to quickly attach items to one another. With Matador's Betalock, it's also a great way to secure them. Forged from durable, anodized aircraft-grade aluminum, it serves as a standard spring-gate carabiner when unlocked. When locked, the internal stainless steel and plated zinc locking components securely keep whatever's attached from being unattached, deterring theft via a TSA-compliant key mechanism. Two keys are included.