qwikSLOT™ Security Units feature heavy-gauge open wire construction that provides the security of totally enclosed sides and lockable double doors. Optional intermediate shelves can be easily added, removed, or repositioned at 1” increments. Reduce pilferage while allowing inventory to be monitored visually. Stationary models have capacity of 300 lbs. per shelf, not to exceed a maximum of 1000 lbs per unit. Mobile models with 5” poly stem casters have capacity of 900 lbs. Not supplied with shelves.