The hook can be moved up and down and the angle of the wings/extensions can be adjusted to suit your shoulder.
The monopod can be attached either side and extends by 115mm plus 30mm fine adjustment.
You also have an extra 25mm downwards adjustment using the base plate.
Simple to fit, slide on and tighten two screws.
If fitting the monopod on the right hand side it will need to be removed from the base plate until the plate is attached to the rifle (this is due to the monopod attachment not clearing the power knob until it is lowered.
Straight fit onto the original stock, no drilling cutting etc needed.