From the website:

Adults absolutely love our adorable Grandpa and Grandma Humpty Dumpties. These senior citizens measure 18 cm (7in) in the seated position and knit up quite quickly using double yarn. As you can see Grandma is always busy knitting and if you’re wondering how Jean made their spectacles … you begin with a plastic soft drinks bottle! Can’t you just picture this loving couple sitting together on a cosy armchair by your fireside?

Named Ouma Doompie and Oupa Doompie in the Afrikaans source: Rooi Rose, 20 April 1983, note grandma is not given knitting needles in this source and grandpa has a scarf but no head covering.