On each peg of the pinwheel shape there are four connecting slits. On one side there is only one slit because it never has to move even if the connection changes, and on the other side there are three slits so that each piece can fit into any of the 4 different types of connections (the fourth is created with the very edge of the folded flap). Because of the overlap of the tiles when connecting them these slits were each calculated to give the cleanest connection possible when the pieces go together.

DSC04391  DSC04425


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