Attributes . Open Four-arm Frame Design Protects Blade, does Not Trap Dirt in Case, Lightweight But Strong Case is Easy to Handle and Rewind, Two-material Grip is Comfortable to Use, Hi-via(R) Orange Case is Easy to Find on the Job Site, Folding End Hook for True-zero Measurements, Yellow Clad Fibreglass Blade Impervious to Moisture, Engineer's Blade - 10ths and 100ths of Feet Plus Feet, Blade Style C2 . Names