This is made of good selection of steel cabinet, durable, smooth steel surface smooth. Mobile phone locker is secure, the structure is very reasonable, there is no surface exposed screws. The size of the phone locker is large enough to store the daily necessities. This cabinet has 20 cell phone storage cabinets, each with 2 keys. It is widely use in shopping malls,schools, swimming pool, sauna, hospitals,office ,gym ,factory ,and other changing rooms , to provide peaple with a safe place to store their cell phones, smartphones and digital cameras,laptops.