RAK Porcelain’s Polaris Restora Dinnerware Collection boasts remarkable durability due to its high alumina oxide content. Crafted from pristine white vitro-porcelain, Polaris surpasses rigorous testing standards for abrasion resistance, high-temperature reactions, and mechanical shock. Its impeccably smooth, non-porous glaze ensures optimal hygiene and durability. For long-lasting protection for stackable plates, meticulous attention is given to the underside polish and polishing process.