Chess Set Self-Storage Premium Walnut, main frames are made of 16mm and 4mm First Quality MDF Boards to maintain the durability of the rigid shape and form of our products. After profiling into various forms and measure, the MDF parts are proceeded to wrapping phase with PU glue with wood decorated High-Gloss PVC foils consistent with the product types. The inner & outer playing surfaces are applied with High Glossy (95%) Acrylic UV Cured Varnish, non- yellowing, solvent, smell & vapor free. Instead of metal clips, High-grade Neodymium Magnets are installed. Accessories, comes with Natural Wood Chess Sets.