This Little Leather Wheel Will Do A Really Big Job For You. Only 7/8" In Diameter, It Is Pre-mounted On A 3/32" Shank, And Is An Excellent Tool For Polishing. You Won't Believe Your Eyes, What A Beautiful Job This Leather Wheel Can Do.* 7/8" Diameter * 3/32" Shank * Use With Rotary Tool * Excellent For Polishing * Premium Quality