These things work well if you have a real dusty track. I've seen guys using the dust bags from little had vacums as well. Looks kinda funky but it works.
-EMBX6,T8 1400, RX8, 5S Lipo ,Elite-RC, RCM tray
-EMBX6,T8 1350, RX8, 5S Lipo ,Elite-RC, RCM tray
-ROAR 4 cell rule Blows