Water-based lacquered Oak with the option of wood, textile or leather upholstered seat. Stacking felt pillow. Plastic slider included. Possibility of pre-assembled felt slider on request for orders over 50 chairs. For textile versions, see cleaning instructions for your chosen textile at Kvadar.dk For leather versions, you must clean leather with a dry cloth regularly. Treat the leather as needed using only special leather treatment products. For wooden versions, clean the chair with a damp cloth. If necessary, use only a mild detergent or dishwashing liquid and do not concentrate. Always wipe with a dry cloth afterwards. To minimize the risk of stains and marks, liquid, grease, etc. must be removed immediately. Both versions with PU lacquer and water-based lacquer of this product can be cleaned with alcohol-based disinfectant. Note, however, that as wood products get patina, where the surface color may fade a bit. If the cleaning is uneven, this may become even more apparent, but the varnish remains in place. For wood products in lighter colors, the patina will be less visible.