I have a case of 22 heavy duty shock and vibration damper rubber isolators. These are 6 inches in diameter with 1.25 inch thickness. The inside diameter is 1 7/8 inch. Not 100% sure of the brand because the tag was cut off the box. These could be used for any purpose that you could think of in the shop or with your Auto. I used four of them under my washing machine and they work great! Just asking five dollars each