The Horse Hair Brush from Swix is a high quality rectangular base brush. Use this brush on the bases of your skis for the second round of wax polishing. You can also use this brush as an all around base brush on Cera F products. This horse hair base brush also functions well as the initial brush for polishing cold weather ski wax. Horse hair has better anti-static properties than other base brushes, grabbing more minute wax particles with every stroke.