Each panel has holes and balls in various patterns. Getting them all to lay flat is no easy task! It's pretty easy to get 4 of the 6 panels to fit. Sometimes you will get 5 of the 6 to lay flat. Each try gets more and more discouraging!
This is a VERY nice looking puzzle that will entertain and delight for years!
Size：9 x 9 x 4 cm
Difficulty Level: 3 of 5
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