The multi-box consists of two parts: the base and the standard lid, both of which are designed with interlocking locking teeth. The plasterer presses the lid to the required height when plastering. This means that the box is always installed flush with the plaster, especially when renovating old buildings without a plaster compensation ring. For flush-mounted installation, we recommend using the reusable plaster spring; locating holes in hollow walls is not necessary when using the drill cover.