ジベル

noun

dowel; wall plug

A small plastic or metal anchor inserted into a wall to hold a screw securely. Common in DIY and construction contexts.

from German Dübel

• 壁かべに棚たなを取とり付つける前まえに、ジベルを差さし込こんでください。

  Before attaching the shelf to the wall, please insert a wall plug.