This is a pair of Class 1 BFGoodrich® Mud-Terrain T/A® KM3 1.9" tires. Pro-Line is proud to announce, in cooperation with the leading full-size Off-Road tire manufacturer BFGoodrich®, the co-release of the brand-new fully licensed Class 1 (4.19" OD) size Mud-Terrain T/A® KM3 1.9" tires! Pro-Line was given early access to the design of the full-size BFG Mud-Terrain T/A® KM3 tire and recreated it for the Scale Crawling community in 1.9" size! As always, these KM3 tires will be made in Pro-Line's legendary G8 compound! The Mud-Terrain T/A® KM3 (Key feature: Mud traction 3rd Generation) is BFGoodrich's Off-Road Maximum Traction tire with aggressive tread lugs that bite into loose or muddy surfaces and climb over slippery rocks. Based on the BFGoodrich® Krawler T/A® KX symmetric tread design, the Mud-Terrain T/A® KM3 features deep, self-cleaning independent tread blocks and linear transverse flex zones to provide the grip that you need to get over the toughest obstacles.