Sneak Peek: Pro-Line 2wd Front Buggy Closed Cell Inserts Trevor Duncan Featured News, Product News Comments Pro-Line is excited to give everyone a look at a project we have been working on: 1/10 2wd Buggy Front Closed Cell Inserts. These Closed Cell inserts are waterproof, reusable, balanced and lightweight. Expect these to be released soon. Never miss an issue of RC Car Action! Subscribe today with a Digital Edition subscription or Print + Digital combo!