MiraCool Neck Bandana, 1.77in W x 6.10 in L, Assorted no checkout convex and flat surfaces Rounded on convex and flat surfaces Rounded on one side with no slipping or stripping Provides maximum torque without requiring heavy input pressure jaw mechanism naturally grips tighter as more torque is applied to the tool Classic trigger release provides maximum locking force Curved jaw puts tremendous pressure on four points of any style nut or bolt head Increase alertness and productivity Provide a great way for workers to reduce heat stress in outdoor and other high heat environments Soak the MiraCool® bandana in cold water for 30 minutes staying hydrated for several days Works without freezing or ice