?Hair Care?Please use silicone-free shampoo and conditioner to care about the pre bonded hair extensions,also allow your hair to air dry naturally.Please comb it from bottom to top but avoid combing when wetting. ?Hair Styling?U tip keratin hair extensions can be straightened, curled, and restyled as you like under the 180?. Only can be dyed to darker color and before dyeing, please take a small portion of the hair for testing first. ?Specification?Length: 14-24 inch. Weight: 50G/50S 1G/Strand. We recommend 2 packs for thickness, but 3-4 packs Utips human hair extensions for full head and add length. ?About Color?U tip extensions include more than 15 colors. All pictures are taken with two packs of hair in order to show it better. Please be attention that there might be some color differences under different screens and lights. Also we are always ready to match the color if you have any confusion with the nail tip hair extensions. Ugeat U tip hair extensions no tangles, no shedding, no split ends. Utips real human hair extensions are popular among professional stylist and salons because of its more invisible feature.