Moving Sale: 40% off in stock items* 26th September - 11th October 2026.
We are taking a short break. Orders placed after the 25th September will be dispatched on the 5th October 2026.
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The Cornerstone Building Set really has what it takes - it allows tricky and surprising layering variations and develops spatial thinking.
New designs in different colour patterns are created over and over again. In combination with Grimm's classic building materials, the Cornerstones reveal their true greatness. With their aid, the most diverse marble runs arise.
The set includes 18 pieces in a wooden frame.
Materials: Beech wood, non-toxic water based color stain.
Size: 15 x 15 x 5 cm.
Recommended from 5 yrs+
SKU: 10184
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