This is a pair of Trencher 1.9" Rock Crawling Tires. The almighty Hyrax finally has some real competition with Pro-Line's all-new 1.9" (4.75" Tall x 1.81" Wide) Trencher Tire! Inspired by Pro-Line's insanely popular all-terrain Trencher tread, this Class 1 legal crawler tire is ready for anything your Scale Adventure might throw at you. The Trencher 1.9" features an extremely aggressive tread pattern with each tread block containing multiple sipes and multiple levels for incredible tread flex while still looking great on a Scale Rig. The highly detailed connected tread on the sidewall of the Trencher extends out for great side-hilling performance that only slides out when you want it to! The Trencher 1.9" tire is made from Pro-Line's Legendary G8 material and Super Soft Predator Compound, so you know it provides the performance you can depend on. The future of 1.9" tire performance is here with Pro-Line's new Class 1 Trencher tires! Get your own set of Trenchers today!