Includes (12) - 120-Grit Detail Medium Abrasive Brush. EZ Lock Compatible-works with 402 and EZ402 mandrels. Gets into tight spaces-unique design allows sanding of contout shapes without damaging your ork piece. Compound Built-In-Abrasive impregnated within rubber wheel for grit to last life of accessory. No need for compund. Color coded wheels for easy identification. The Dremel Detail Abrasive Brush-Perfect for restoration projects-Handle Preperation work and the details with ease.