Plastic Material : Made of plastic material , it has good durability and impact resistance . This structure ensures it is not easy to deform and provides better bearing capacity for storing important documents and items Size Information : The size of the lockable combination storage box is 30.5x24x11.8cm / 12x9.45x4.65 inches with a capacity of approximately 8L , which can meet your daily storage needs Dual Layer Design : Adopts a dual layer design to maximize space utilization . It effectively helps you organize your items , making it an ideal storage solution for homes , offices , schools , enterprises and more High Security : Our storage box is equipped with a secure 4 digit combination lock , ensuring that only those who know the password can access it safely , effectively guaranteeing the security of your stored items Portability : The hidden handle design is convenient for use and carrying , ensuring you can take it to any place where secure storage is needed