Circles and Rings Building Set 20pcs (Grimm's)
A 20 piece building set with concentric circles and rings ranging in size from 2 to 20cm.
Lay out the rings and circles in patterns or integrate them into your building plans (works best with the Grimm's smaller 2x2 sets). You can even use them as a teaching tool for counting: the possibilities are enormous.
A wooden building set by Grimm's in their traditional rainbow pallette.
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