Practical for lightweight interior doors: The small door closer closes doors weighing up to 20 kg automatically and quietly - also helpful for saving energy. Simple installation without tools: The door closer is simply attached to the door and is therefore also suitable for rented flats - no drilling, no screws, no gluing. Variable closing force: The closing speed can be adjusted in three stages. Versatile suitability: The 2603 can be fitted to interior doors (max. 20 kg) with a rebate thickness of up to 16 mm - it works with left and right closing doors. Further details: Not suitable for use on flush doors, i.e. doors without a rebate.