This is the 1980 limited edition "Sailing Days" boy and girl figurine sets 2104 and 2105.
This set is limited edition number 2424/10,000 and features a girl with a sailboat, and a boy sanding the bottom of a sailboat that he is building.
The girl figurine measures about 2.75" tall and 2.5" wide and the boy figurine measures 3.5" tall and 2.75" wide.
They are in good pre-owned condition in the original box.