GunMjo PBT Dye-Sublimation Shark Keycaps PBT material, good anti-oiling ability, resistant to hand sweat and oil stains. The Keycaps uses unique process technology, with high-quality PBT 5 Sides Dye-Sub design, excellent material hardness. Theme pattern printing is our unique feature this time. GunMjo PBT Dye-Sublimation Shark Keycaps makes sure your money is worth paying.