Enough pistons for BOTH hands!

This is a set of front and rear pistons for ONE arm. Be sure to order two sets... These are a NEW model and will be updated once I have reviewed or received feedback that could improve the pistons. The small worm-screw piston lock hole and The small mounting holes at the top will have to be drilled to taste. Future versions should include this in the model once I have tested the hole size and placement.... These will require a piston rod. I'm suggesting .25" diameter metal.