Disc Magnets, without self-adhesive
Disc magnets without self-adhesive foil are often used if the disc magnets are trained ones.
With briefcases or packaging disc magnets are often concealed, pasted so from the outside with paper or other material. It can be renounced or self-adhesive foil on the disc magnets.
Account of the high strength of the disc magnets is the locking strength also with concealed disc magnets still excellent.