https://www.fujistarabrasives.com/products/f559-orbital-sanding-discs/ F559 Orbital Sanding Discs FUJISTAR F559 random orbital sanding discs is abrasive paper for dry sanding with good flexibility and durable life. Premium Aluminum Oxide grain provides sharp, aggressive and high efficient performance, leaving perfect surface with uniform scratch. Adopting premium imported Cwt latex paper backing, F559 Orbital Sanding Discs has good flexibility and long durability. Super composed adhesive system provides high bonding strength and extends product life. Stearate anti-loading coating resists clogging and increases cut life.