Grit Nonwoven Finishing Drum Type: Nylon Burnishing Polishing Wheel Brush Material: Made of high quality nylon, durable, wear resistant ang long service life. Size: Measures approx 12cm(4.72") in diameter and 10cm(3.94") in height. Grit: 80# Feature: With advantages of high performance and superior durability. Function: For the surface treatment(burnishing and polishing) of stainless steel, aluminum, copper and other metal products.