100' Fatmax Stainless Steel Long Tape Rule, 3/8" Blade, 3 To 1 Gear Drive For Faster Rewind, Stainless Steel Blade For Long Life, High Impact ABS Case With Rubber, Non Slip Grip, Tru-Zero End Hook For Inside & Outside Measurements, Steel Roller Cage To Protect Case From Being Cut By Blade During Retraction, Replaces Model #34-252.