a6ecaca2_per_Guide___Ground_Up_Strength__Notes
[Gripper Type] #1.5 [Resistance (lbs)] 167.6 [Notes] 
This bridges the gap between the resistance of a No. 1 and a No. 2. Since the jump from 1 to 2 can be quite difficult this can help you progress to the next level a bit easier
The Gripper Guide - Ground Up Strength
Notes