Neiko 30265A Velcro Face Sanding Pad 6-inch Multi-hole Vacuum Type for Dual Action Orbital Air Sander Six multi-hole design on each pad prevents dust from clogging sander machine allowing easy cleaning to prolong tool life Fast, durable consistent operating speed of 10,000 RPM withstands high revolving frequency to achieve a consistent, smooth finish Velcro face design with hook and loop function provides quick closure for removing disc without wearing out overall strength High quality tapered firm foam material is lightweight and comfortable providing extra durability and a strong grip Universal standard backing pad size 6" x 5/16" with 24 threads fit most air sanders in industrial settings, garages, and woodworking.