The Bling Ringz are designed specifically for the PONY-O (not included) and will not work with elastics. Add pop and pizazz to your ponytail or wear it around your wrist. A wide variety of styles and colours to choose from. For complete coverage of the PONY-O, we recommend the Square Bling Ringz. BLING RINGZ are worn over the PONY-O (sold separately).