Building, stacking, and finding just the right balance with these organic, round stone shapes is challenging and fun. Enrich small worlds of your own creation: add to a river (silk scarf), make a cave, present a stony landscape, or build a cairn. 4 pieces in shades of blue. Materials: lime wood, non-toxic water-based color stain. Size: H = 2,5cm, L = 6-12cm.