Nietz Flexible Flap Disc X 563 Heated A.O. 4 X 120 10/200

* Flexible, Ideal for Surface Sanding on Flat, Curved Edges & Corners.* Heat Treated Aluminium Oxide for High Removal Rate, Sturdy Cloth & Durable Backing Pad.* Work Condition on No. OFFLAP: - 45# Flexible but Not Durable.- 60# Very Durable but Not Flexible- 50# In Between