These Laptop Lockers / Notebook Lockersare the space-saving approach to storing, recharging and managing virtually all mobile technology devices with 14"w clear opening width, 18"d and various heights. Units can be purchased as 33"h unit (see 3rd photo) or stacked 2-high (as shown in 1st 2 photos) to create 66"h stacked unit plus optional 6"h base. Most common configuration is 7-doors per 33"h unit or 14-doors per 66"h unit plus base. One master door per each 33"h unit. Innovative Keyless Lock System allows for re-setting codes and maximum usage without keys!