For Part Number 13904/13909 Replacement Sanding Pad, Compatible with for 333 33VS Random Trackal Sander For 5 inches long Trackal sander pad, with 3 screw holes and 5 dust holes, the distance between the centers of adjacent screw holes is 1.38 inches/35 mm, please confirm your machine size before purchasing The track replacement pad is suitable for woodworking and DIY projects, such as sanding rough surfaces, removing old paint or varnish, also suitable for automotive and metalworking applications The sander replacement pad prevents damage to the disc brake rotor bracket during work, prolonging the service life. High-density uniform hooks provide stronger abrasive paper grip, ensuring a safe and perfect polishing effect The 5-inch Trackal sanding pad is made of engineering plastic and high-quality soft rubber for a longer service life. Engineering plastics are hard to damage, and soft rubber can reduce the vibration of the Trackal sander and improve the effect When the replacement pad needs to be replaced, just remove the three screws that hold the pad to the sandpaper and replace it with a new one. NOTE:Screws not included Colour:As Shown Material:rubber Package Contents: 6 * Track Sander Pads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.