Practical Häfele letter slot flap made of aluminium with thermal insulation for optimal sealing. Easy and quick installation using the included fastening screws. Self-closing letter slot with 2 return springs, plastic bearing and thermal insulation. Extremely high-quality and well thought-out insert, designed for functionality, stability and durability - quality that you can see and feel. With over 12 years of experience in the field of building and furniture fittings, we have been offering exclusive branded products from well-known manufacturers for do-it-yourselfers, carpenters and industry since 2014. We attach particular importance to quality, regionality and sustainability, which is why we work mainly with manufacturers from Austria, Germany and Italy in order to be able to supply.