Home / Educational / Geostacks “VIGA LOGIC BLOCKS” has been added to your cart. View cart $24.00 Geostacks quantity Add to Cart Category: Educational Product ID: 13625 Related products View Add to Cart VIGA GEOMETRIC BLOCK SORTER $22.00 View Add to Cart VIGA COUNT & MATCH NUMBERS $22.00 View Add to Cart VIGA MEMORY $20.00 View Add to Cart VIGA PATTERN BOARD AND BLOCK $37.00