Each Box Contains 2 Trac-Grabber Blocks; Simple And Effective Solution To Being Stranded And Disabled In All Types Of Terrain And Adverse Conditionstrac-Grabbers Are Most Effective When Used As Directed At The First Signs Of Tire Slippage (Or Being Stuck).Trac-Grabber Is An Innovation Designed To Enhance The Ability Of A Slipping Tire To Extract Itself From A Poor Traction Situationtrac-Grabber Block Measures 9" (L) X 3.5" (W) X 1.5" (Depth)Easy To Install, Safe To Use And Affordablethe Trac-Grabber Is A New Revolutionary And Inexpensive Device Which Is Quickly And Easily Strapped To The Drive Wheels Of A Vehicle Which Is Stuck In The Sand, Mud, Or Snow, And Enables The Vehicle To Get Unstuck Quickly Under Its Own Power. Trac-Grabber Is The Cheaper Alternative To Snow Chains. With The Trac-Grabbers Secured To The Wheels, The Wheels Spin To The Point Where The Trac-Grabbers Engage, Lift, Grab, And Move The Vehicle Back To The Stable Terrain. Trac-Grabbers Provide A Quick, Simple, And Effective Solution To Being Stranded And Disabled In All Types Of Terrain And Adverse Conditions. The Trac-Grabber Block Dimensions For Car/Van/Atv Trac-Grabber Are 8In Block Length, 3In Block Width, And 1In Block Depth. Just Strap On A Pair Of Trac-Grabbers And Rescue Yourself! Trac-Grabber. Don'T Get Stuck Without It!