Description Diablo's premium random orbital sanding (ROS) discs with Hook & Lock backing include breakthrough innovations that improve performance, extend sanding life and increase productivity. Featuring a premium ceramic blend, these discs remove material faster than other sanding discs and offer an extra-long sanding life. Clog-SHIELD, Diablo's own blend of grinding agents, reduces loading thus maximizing productivity. The superior grain bonding system, ENDURA-BOND, provides Diablo's sanding discs with longer life and extreme durability.Universal hole pattern, a one-size-fits-all design (fits all 5 and 8-hole sanders) for fast and precise alignmentPremium ceramic grain blend, a superior quality formulation designed for fast material removal and long sanding lifePremium Hook & Lock backing enables repeated attachment and removal of discs for a consistent secure connectionClog-SHIELD, a proprietary blend of grinding agents that reduce pitch buildup and cloggingFor orbital and DA sanders in wood, metal, and plastics