This product is a permanent wave kit designed specifically for achieving extra firm curls on normal to resistant hair types. Each set includes four pieces tailored for a single application, ensuring that users can easily create long-lasting, vibrant curls without causing damage. The formula is designed to provide a gentle yet effective waving experience, leaving hair feeling healthy and resilient. Ideal for those looking to enhance their natural waves or to achieve a new curly hairstyle, this product stands out for its ease of use and reliable results.