Product information Small and handy combi brush. The ideal brush for use with all SWIX F4 products. The white felt spreads and/or polishes the F4 wax while the nylon brush removes excess wax from the base. This process will increase the wear resistance of the wax. ; 0.23 mm. The only brush you need if you only use liquid glide wax. Combi brush with felt For brushing and polishing quick glide wax Handy size