Protects grip hooks on pad and extends the life of the backup padAllows for dust free sanding5 Per Pack Mirka 9955 5" Abranet Grip Faced (Hook and Loop) Pad Protector - Mirka's pad protectors are used between the sander pad and the abrasive disc reducing wear of the backup pad's grip hooks. Our 9955 pad protectors have 5 hole vacuum patterns as well as Abranet multi-hole patterns.