This unit is a machine made with an 18" 5x5 HD closure and 18, 20, & anp; 22 inch straight bundles. It is wand curled to achieve the big flowy curls. It fits a head circumference of 21-22". Our Diamond wigs include a collection of machine and factory-made wigs using our Cambodian, Indian, or Indonesian hair. These wigs have a life span of 3-5 years with proper care and maintenance. Diamond wigs are perfect for women who want a natural, glamourous look with a bigger budget.