This is 1:10 4WD Front Buggy Closed Cell Inserts. Choosing the right insert for the right condition can be the difference between winning, losing, or just plain having bragging rights over a competitor on the track. Pro-Line now offers an aftermarket insert for you 1:10th scale 4WD buggy enthusiasts to use on those tracks that desire a firmer and longer lasting insert set-up.
Closed Cell Technology
No air gaps in between tires unlike other brands
100% water safe
For use on tracks that desire a firmer insert