Contents: The set typically includes 60 durable plastic rods and often features an elastic band to secure hair in place. Specifications: Each rod has a diameter of approximately 0.35 inches (0.9 cm), making them ideal for small, defined curls or perms. Design Features: These rods are designed with multiple vents for better saturation and airflow during the perming process. Versatility: They can be used on wet or dry hair and are suitable for both professional salon use and DIY home styling.