Hook-On cassette is a cassette type that can be easily opened at each point. For this reason, Hook-On ceilings are ideal for use in social and community buildings, where it may be necessary to have access to communications installed behind the ceiling. Such premises may include offices, shopping malls, restaurants, airports, etc. The cassette can be readily opened at one end, whereas it will remain hanging from its opposite edge.
Cassettes may be manufactured in different dimensions and with various surfaces. Uniqueness may be added by clever perforations. The acoustic characteristics of the cassette can be improved by adding an acoustic cloth.