Pro-Line's new inner inserts are made from lightweight and waterproof Blue Closed Cell Foam while the outer is made from Soft open cell foam. When combined they are perfectly sized for Pro-Line's 1.9" XL sized Rock Crawling Tires.

Pro-Line's new inner inserts are made from lightweight and waterproof Blue Closed Cell Foam while the outer is made from Soft open cell foam. When combined they are perfectly sized for Pro-Line's 1.9" XL sized Rock Crawling Tires.