But then, nest them together, pull up on the smallest, and let your jaw drop. The whole thing stretches into a tall, spiraling tower! - It's like magic! Beautifully un-intuitive design inspires hours of tactile discovery with SpiroKu.

SpiroKu Ages 3+

• Unique stacking cylinders that stretch into a tall tower
• Encourages fine motor skills, spatial reasoning, experimentation, creativity
• Stack and arrange cylinders creatively
• Vibrant colors fascinate the eyes, unique contours inspire imagination
• Nest them together, pull on the smallest - Stretches into a tower!
• Includes 9 cylinders sized big to small
• 22 inches tall when stretched into a tower
• Largest cylinder measures roughly 4 inches in diameter
• High-quality ABS plastic - BPA-free