SARLA Synthetic Hair Bun Scrunchy Messy Hair Extensions Hairpieces Donut Hair Chignons Material:100% Japan Heat-friendly Fibre Adjuststable size, very easy to fit with a elastic hair tie for most people Suitable for Any Occasions: With This Hair , You Can Style an Updo in Just Minutes and Turn Any Day into Something Special. Can Be Worn for a Prom, Wedding or Evening Out to Surprise Your Friends or Admirers. Weight:about 30g Size:9.5*6*2.1inch