I-Tip hair extensions are individual hair strands with a keratin-based "stick" tip, attached strand-by-strand to natural hair using small, silicone-lined microbeads that are clamped shut offering a heat-free, glue-free method to add length and volume with natural movement, ideal for customizing and versatile styling like ponytails, requiring maintenance every few months as hair grows. 

I-tips are a good filler pieces for around your face. And they CAN be reused multiple times.