This rolling shutter door lock is engineered for maximum security, with a copper core and a cross-shaped that deters .The lock's design ensures ease of use and installation, making it a practical choice for both commercial and residential settings. Features -Color:Silver -Material:Iron, copper -Size:20.00X4.00X2.00cm/7.86X1.57X0.79in - : made from a copper core, this lock is designed to offer longterm durability and reliability -Elegant design: the cross shaped bottom opening design is not only functional but also adds a classic touch to your door -Security features: anti theft capabilities ensure that your home is safeguarded against potential breakins -Wide compatibility: the universal design makes it suitable for various rolling shutter doors, enhancing its versatility -Userfriendly: simple installation process allows you to secure your property quickly Package list: 1 x Rolling Shutter Door Lock with 3 key