The little ones will have fun stringing and stacking the rings with different textures, and it can later be used as a roller by attaching both caps, for endless rolling! It contains 4 rings with different sizes and colors, stackable to promote spatial vision, reasoning, logic, and motor skills by inserting them into the cone in the correct order. This toy is made in Spain with 100% eco-friendly materials of plant origin and 100% recyclable, highly resistant and durable over time. Easy to clean and sanitize.