It is used in bedding with base system. It provides opening of the plinth door at 40 degrees with the help of a gas shock absorber. Gas springs are used between 300 and 1200 newtons. When the plinth cover is opened, the lock system is automatically activated and the plinth cover is not closed. To close the cover, it is lifted up to 10 cm and the lock is deactivated and the cover is closed.