Features:_x000D_ _x000D_ Sponge material, with buffering function, can effectively reduce the damage of vibration to the product. _x000D_ Shake-proof and noise reduction, easy to install. _x000D_ Magic adhesive patch bottom, convenient to use. _x000D_ Four types of cushion pad for your choice, meet your different needs. _x000D_ Especially suitable for pneumatic and electric type of self-cleaning polishing machine and grinding machine. _x000D_ _x000D_ Specification:_x000D_ Material: Sponge_x000D_ Weight: Approx. 20g/0.7oz_x000D_ Diameter: 150mm/5.9inch_x000D_ Thickness: 11.5mm/0.5inch_x000D_ Hole Quantity: 6 holes, 9 holes, 15 holes, 17 holes (Optional) _x000D_ _x000D_ Package List:_x000D_ 1 x Soft Sponge Pad