This is a pair of 1.9" Super Swamper® XL Tires for Rock Crawling. Under official license from Interco® Tire Corporation, Pro-Line is proud to announce the 1.9" TSL SX Super Swamper® XL. The Super Swamper® XL is now available in the softest Rock Crawling Rubber ever made: The all-new Predator Compound! The Super Soft Predator Compound excels on wet or ultra-low traction surfaces to give you grip like you have never experienced before.