Straps – Does the Color Matter?
Blue Straps are Hand Straps, Green Straps are foot straps. Yes you can use all 4 straps at the same time. No requirements for switching them around. Use the RCA splitter cable supplied to connect all 4 straps to the machine. They are labeled feet and hands for those who like to keep them separate. But, other than the labeling there is no difference between the hands and feet straps. You can use them inter-changeably.