The Flex 259819 is a 5-pack of 150-Grit Drywall Sanding Pads. The sanding pads in the 259819 are 8-7/8 Inches (225 mm) in diameter and have a foam backing. These pads can be used with a variety of sanders, including the Flex WS702VE or the Porter-Cable 7800.
These sanding pads should NOT be used at speeds over 2,000 RPM