Features: Secure and organize multiple phones effortlessly with this aluminum alloy phone storage cabinet featuring a transparent lockable door, numbered slot, and wall mounted design for classrooms or dorms. Aluminum alloy construction, numbered multiple slot grids, and a portable handle ensure easy identification, daily durability, and flexible installation in high traffic environment. Ideal for middle/high school teachers, dorm supervisors, or office managers seeking a reliable solution to store and safeguards smartphones during activities. Perfectly suited for classrooms, study halls, meeting rooms, or shared spaces requiring centralized phone storage with quick access and tamper proof security. The clear door allows visual inventory checks without unlocking, while wall mounted design optimizes floor space in busy educational or residential setting. Specifications: Component: Aluminum alloy Size: 8 Slot:Approx.265x200x150mm/10.43x7.87x5.91inch 12 Slot:Approx.215x190x270mm/8.46x7.48x10.63inch 24 Slot:Approx.265x190x380mm/10.43x7.48x14.96inch Package Includes: 1Pc Phone Box note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.