Very easy to use;Suitable for both adult and children use;Light weight,convenient to carry everywhere.Must-have for DIY your own hait style Hair Base, volume up the hair instantly Easy to hold with it's anti-slippery texture Package including: 4 Pcs - Quick to use, while adding volume and fullness to your updo hairstyles. - This hair clip will make your hair more sofe and bump;Unique Christmas Gifts,New Year Gifts - With Bump Up Volume Hair Inserts to make you hair style feel more "3D" and fashion . - Create different types of beautiful hair bun hairstyles including with these foam hair insert clip How to use: 1. Choosing a place which you wanna hair increasing.Pull uo a mount of hair.Put the insert close to the hair roots 2. Make sure the insert is tiny close your hait root,then cover the hair and put it down 3. Adjust and hide the insert