・ Can be fitted and fixed to the top and bottom of commercially available 2x4 lumber. ・ Can be used without damaging walls, ceilings, or floors. ・ The backing card has folds and stains, but it has not been opened. ・ Spring-loaded - Brand: WAKAI - Product Name: Dia Wall - Color: White - Set Contents: 2 pieces - Features: Can be installed on concrete walls - Uses: Furniture fixation in apartments and flats - Installation method: Simply set it on 2x4 lumber Thank you for viewing.