This invaluable tool is handy for levelling your SeeStar S50 level without needing to adjust the tripod legs.
It provides up to 5º of level adjustment simply by turning the knobs on the side.
With a 3/8" female tripod thread on the bottom and a 3/8" male thread on top, it easily fits between your SeeStar and its tripod.
Made from aluminium, it weighs only 225g and measures 67x46mm.