Crystal Color Stacking Blocks

Turn simple stacking into a sensory experience! The blocks stack easily with the help of specially designed grooves. Use the grooves to align the blocks at various angles and create new tower designs. Overlap different block colors to explore color mixing concepts. Use the blocks on a light table to create glowing towers. Includes: 50 blocks, 2 x 2½” (5 x 6 cm) and guide.