Metroplan secure mm90 multimedia projector cabinets metroplan mm90b this beech mobile projector cabinet from metroplan can be used to transport and display all your multi media equipment in one compact unit the mm90 has a 3 point door lock plus a lockable rear access panel to ensure equipment can be stored safely when not in use ideal for use in schools and colleges metroplan secure mm90 multi media projector cabinets 930x524x570mm beech