At the height of the COVID-19 pandemic the humble jigsaw puzzle became a household staple.
And Benjamin Halls, the director of south west Sydney distribution company William Valentine Collection, says puzzles are still flying off the shelves.
Mr Halls said during March puzzle sales spiked.
"Sales just skyrocketed overnight because the Prime Minister, Scott Morrison, said jigsaws were an essential item," he said.
"Demand went through the roof, retailers put in big orders overnight.
"We sold 20,000 units in just 72 hours.
"Now we have sold more than half a million units. It was total pandemonium."
The COVID-19 pandemic saw thousands of workers confined to their homes or unemployed, often with children stuck at home as well.
Mr Halls said puzzles soon became the go-to boredom buster.
"Puzzling is time consuming, it can take hours, days or even weeks," he said.
"You had a lot of parents forced to work or stay at home with the kids and keep them entertained.
"I'd be surprised if most homes didn't have at least two to four puzzles.
"Plus, it opened up a whole new market for puzzles because so many people may have never puzzled before."
William Valentine Collection stocks Aquarius and Rock Saws puzzles.
Mr Halls said while orders had started to slow, the demand for puzzles remained consistent.
"The amount of orders have definitely softened but the demand for puzzles has been consistent, however we also have shortages coming from China which is affecting puzzle orders," he said.
"I think puzzles will stay pretty popular.
"There are a lot of people who weren't puzzlers before the pandemic who might be full-time puzzlers now."
Mr Halls said big name franchises dominated the most popular kinds of puzzles.
"People are loving anything Disney or Marvel," he said.
"The demand for Harry Potter puzzles is also enormous."