Forsun 40Pcs 1" (25mm) Abrasive Wheel Buffing Polishing Wheel Set For Dremel Rotary Tool Shanks are 1/8 inch (3mm ) Buffing wheels are 1" in diameter Brown 80Grit,Green 180Grit,Red 320Grit,Black 400Grit Each grit 10pieces, total 40pieces