Hairdo’s 23-inch Grand Extension is a 3/4 valve body with a lid with five sharp pressure-sensitive clamps for safety. Increase volume and length to provide maximum coverage. Beautiful soft wavy style sticks quickly and easily. Made from Tru2Life® heat-resistant synthetic hair, it withstands heat and moisture and offers a variety of styles. But why would you change anything with such a great style? Make a large entrance to the Grand Extension. For more information and how to apply, see 23 “Grand Extensions” video review.