OSIS Rock Hard Ultra Strong Glue Schwarzkopf Professional is una an extreme hold hair glue, ideal for creative fixes and structured hairstyles. With una an ultra-resistant and long-lasting formula, it ensures absolute control without weighing down. Easy to shape, it provides a flawless look even in challenging conditions, keeping hair perfectly in place all day. Perfect for those seeking defined, long-lasting, and professional styling with a reliable and superior quality product.