Please note that we do not warranty hair elastics as they are manufactured by another company. We test each elastic prior to shipping. They tend to loosen and may even break, even on first use. This is why we recommend the hair tie-in. Please view the video on Youtube titled "How to use a tie-in" and choose your attachment carefully. If you prefer to use the hair elastic, we recommend using an initial elastic to secure the pony prior to placing the bow.