Strongdouble sided tape glue Easy to apply and remove Invisible and seamless Longlasting and reusable Real human hair Tangle free and shedding free Natural straight and soft silky No split hairends Hair specification: 12 inches about 30cm, 10pcs/pack 20g total 16 inches about 40cm, 10pcs/pack 20g total 20 inches about 50cm, 10pcs/pack 25g total 22 inches about 55cm,10pcs/pack 25g total Application: lf you have short hair, please choose 6-8 packs for full head lf you have long but thin hair,please choose 4-5 pack for full head 2-3 PACKS FOR HIGHLIGHT EFFECT 3-5 PACKS FORNORMAL VOLUME 4-6 PACKS FORFULL HEAD Item: Invisible Tape Hair ExtensionsMaterial: 100% real human hair Tape size: 10 pieces one pack Length & weight: 12 inches=30cm, 2.0g/pc, 20 grams total 16 inches=40cm, 2.0g/pc, 20 grams total 20 inches=50cm, 2.5g/pc, 25 grams total 22 inches=55cm, 2.5g/pc, 25 grams total Application suggestion: Short hair want longer and more volume effect, buy 80 pieces please Long hair but thin want more volume effect, buy 40-60 pieces please Want highlight hair effect, buy 10-20 pieces About Color Difference > Different monitors and light environment will show the color differently. > The color of our product shown on the iPhone screen under the good natural light is more accurate Dear friend, Thank you for shopping on lSHEENY store, we hope you are enjoying your purchase! If your satisfied with our service, please leave us 5 stars feedback. If you have any problems with the order, please give us an opportunity to MAKE IT RIGHT before leaving negative feedback. We will supply best after-sale service. Thank You