FIELD: construction industry. SUBSTANCE: gear to close hole in wall which surface is faced with ceramic tiles or plates has holder 7 for permanent magnet 8 interacting with ferromagnetic part installed in internal side of cover closing hole faced with ceramic tiles or plates. Holder 7 is fitted with protrusion with threaded pin 6 screw into threaded hole of frame covering hole. After separation of protrusion from point 12 of decreased strength holder 7 can be connected to anchoring part having lamellar section inserted into slot 15 of holder 7. EFFECT: enhanced reliability of closing of holes. 7 cl, 6 dwg
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