Secure your home with the Yale Door Security Bolt Lock. Made from durable metal, this bolt lock offers robust security for your wooden doors. Designed for internal use only, the lock is concealed within the door for a discreet appearance. For optimal security, it is recommended to use two bolts per door. This package includes 2 bolts, a key, and all necessary fixings. The size of each bolt is 2 x 13 x 22cm, and this particular model is size 2. Product Summary: Yale door lock, metal bolt, light bronze, concealed lock, internal use, wooden doors, security bolt, size 2, 2x13x22cm.