This extension shaft makes it easier to reach ceilings and high walls when sanding with the Mirka® LEROS wall sander. With the 56.3 in. sanding arm, and its T-handle, you reach the same height as with a 63 in. machine. You adopt a new sanding posture facing the surface like a paint roller. To sand even higher, there's no need for a ladder, just attach the 19.69 in. extension arm to comfortably reach a surface up to 11.15 feet off the ground (based on a 5.9 foot operator).