Kyosho MINI-Z 4X4 MX01 BRASS BALL 4.8MM (12) #MXW007

Very good

not much to say about this, i mean everybody knows the difference from pvc balls to brass balls. Even if they do the same job and my pvc balls were like new, after mounting the brass balls i could directly see a difference, better moving parts and the obvious sand will not damage them as fast or easy as the original ones. If you run a lot outdoor on sand or dusty trails this is a must. Have fun!