Pro-Line Grunt Rock Terrain 1.9" Rock Crawler Tires are designed from the ground up to give your military build the combat-ready looks and performance that you need to outmaneuver the enemy. Coming in at 4.4" tall by 1.4" wide the Grunt 1.9" the tire is the perfect size for single or dually military tire applications. The tread features alternating rows of 3 tread blocks that will charge through trenches and take no prisoners. The stepped sidewall not only looks scale but also adds protection from sharp jagged rocks. The Grunt 1.9" tires are made from Pro-Line's legendary G8 rock crawling compound, so you know they will have the grip you need.