Package Include: 40Pcs Perm Rods for Hair (10Pcs Jumbo Size, 10Pcs Large Size, 10Pcs Medium Size, 10Pcs Small Size)Jumbo Size: 3.19Inch * 0.87Inch(Diameter), Large Size:3.19Inch * 0.77Inch(Diameter) Medium Size: 3.19Inch * 0.71Inch(Diameter) Small Size3.19Inch * 0.5Inch(Diameter) . Not Hurt Hair Wave Rods: Professional Non-Slip Cold Wave Rod with Rubber Band and Can Be Opened Lid Cap. Can Be Easily Fixed. Easy to Put In and Take Out, Extra Wide Slots for Even Fluid Distribution to Your Hair. They Get Clung to Your Hair Easily, without Any Support of Pins. . Various Size: 4 Pcs Optional Sizes, Create Different Curly Wavy Body Wave Water Loose Wave Hair Style, Meet Your Different Needs, It Is Great Hair Roller for Long Hair, Short Hair and Natural Hair. Great for Salon or Household Use. . Great for Style Needs: Sufficient Quantity and Different Size Can Meet Your Different Needs, You Can Share with Your Family and Friends, It Is Great Gift for Women and Girls, Giving This Hair Care Roller As A Unique Present to Your Daughter, Girlfriend, Wife and Mother. .