This 3M Bumpon polyurethane material allows a smoother grind and a refined polish when used with any finer grade abrasive, such as Trizact or diamond
Mounted between the backpad and the abrasive
It gives the abrasive some extra space to fall into and brings vibration to a strict minimum while working
The ninja cushion is ideal for working on rounded or domed objects
It is equally useful for flat surfaces

Technical Details

Size (LWH): 5.5 inches, 5 inches, 0.2 inches
Product Details
Product Dimensions: 5.5 x 5 x 0.2 inches
Package Dimensions: 5.5 x 5 x 0.2 inches
Shipping Weight: 0.05 pounds (View shipping rates and policies)
ASIN : B006CQX3TG