The present invention relates to a laundry treatment device (1) comprising: a drawer (2) which has a drawer housing (22) and a drawer extension (21). The drawer extension (21) can be pushed into the drawer housing (22) in one direction of insertion. The drawer housing (22) has a prismatic guide (30) which extends parallel to the direction of insertion, and the drawer extension (21) has a projection (25) which is designed so that the projection (25) with at least two to each other inclined sliding surfaces (31) of the prism guide (30) is in contact, so that the drawer extension (21) is guided during a movement along the insertion direction in the prism guide (30).
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