Lufkin, 1" x 25' Self-Centering Tape Rule, Helps You Find The Center Of Your Measurement - Saving You The Trouble Of Dividing Fractions Yourself, Yellow Clad Blade Has Bold Black And Red Numbers For Easy Reading, Black Numbers Represent The Objects Measurement And The Red Numbers Represent The Center Measurement, Unique Slide-Lock Design Offers You Easy Control Of The Tape Blade, Wide Base Helps Keep The Tape Standing Upright, Lightweight, High-Strength, Contour-Grip Case Fits Comfortably In Your Hand, Hi-Viz Orange Case Is Easy To Find On The Job And Offers Convenient Storage.