Package:9 pack nylon filament abrasive wire brush set including three pack pen brush,three pack flat brush,three pack bowl brush. Size:pen brush-6x25mm, flat brush-6x25mm;bowl brush-6x25mm1/4-inch round shank, Max RPM: 4,500,bowl brush and flat brush is 3 inch, pen brush is 1 inch : Abrading wheels and brushes with coarse abrasive grit embedded into the nylon brush strands, so they quickly and easily remove rust, , and they also sand, scuff, and deburr metal, wood, plastic, and ceramic surfaces. Wide applications:Nylon Brush kit is an All-Material-In-1.Safe and rust and paint remover and cleaner on most wet or dry applications like Metal, Steel, Stainless Steel, Wood, Aluminum, Plastic, PVC, Tiles, Stones and more More : to use than wire brushes, synthetic, chemical Nylon Bristles are extremely safe and not spark, corrode, puncture skin, Maintains shape & not rust, not shed bristles under normal conditions.<br><br>Colour:gray+blue+red Material:nylon<br><br>Package Contents: 3 x Red Brush 3 x Blue Brush 3 x Grey Brush<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.