Adjustment knob: level 1 = level 2 for 6 mm single glazing = level 3 for 12 mm single glazing and balcony glazing = level 4 for 18 mm double glazing = level 5 for 24 mm double glazing = instructions for use for 30-32 mm double glazing: -the product consists of 1-5 stages. it is suitable for single and double glazing. -product level adjustment is made only on the glass. use by adding dish soap to the felts so that the product does not leave any marks on the glass. the product must be absolutely wet from the inner and outer glass. otherwise, the product will not move on the glass and will fall. more than 100 stocks are offered to be sold at the campaign price. the listed price is valid until october 17, 2026. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.