The waist band is elastic and it's easy , and can fit a variery of shapes and size. Satin covered waistband for added comfort.Layered tutu with led lights, made of high quality materials, with vibrant colors, soft and comfortable to wear.The LED tutu comes with one string of light.The lights looks bright and at night, and gives a great Illumination of the skirts.Two button cells included. The battery is with ON/OFF switch in a small plastic box at the waistband. The led lights last long.Eye-catching star sequins print that 't fall off the tutu ; Great for costume parties, holiday events, 10k marathon runs, and more.size: One Size (cm / inch) = Length: 40 / 15.75Material: 100% Polyester Fibercolour: PurplePackage Contents:1 * Tutu Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.