"GOOGOO Invisi Edge Tape in Hair Extensions use medical adhesive tape for sensitive scalp, designed specifically to add volume to thin hair on crown and side parts. The skin weft tape extensions create a flat, undetectable layering effect – ideal for fine hair types seeking lightweight, reusable hair extensions that blend with natural roots. Premium Virgin Human Hair Extensions: Crafted from pure virgin human hair for unmatched durability and longevity. With proper care and use of conditioners, GOO GOO Invisi Edge tape in hair extensions maintain their high quality for 6 to 12 months Invisible & Natural: The high-quality Injection Tape replicates the look of natural hair, creating the appearance of hair emerging from your scalp like skin weft. Ultra-thin and comfortable, it enhances the top and temples for a fuller, natural look Comfort & Secure Fit: The strong, hypoallergenic double-sided tape ensures a secure, firm attachment while staying invisible. At 4cm wide, it’s lightweight, non-damaging, and lies flat against the scalp for comfort, with smooth, and tangle free Details & Usage: Each set includes 40 pieces—20 traditional tape ins and 20 injection tape ins. Available in 10" (60g), 12" (80g), and 14"-24" (100g). For optimal invisibility, apply the injection pieces on the outer layer. Real Human Hair Care: For heated styling, keep below 250°F. Wash with mild shampoo and conditioner in warm water. Use a low-temperature setting to blow-dry or allow it to air dry naturally. Style as desired—curl, straighten, or wear for any occasion Material Features: Premium 100% Remy Human Hair Package Dimensions: 7.48 x 4.72 x 1.38 inches; 3.53 ounces Unit Count: 3.5274 Ounce Installation Type: Tape-In Color: Mix-#1 Jet Black ASIN: B0F1FK13CH Material Type: Premium 100% Remy Human Hair Material: Premium 100% Remy Human Hair Hair Type: Straight Material Feature: Premium 100% Remy Human Hair Brand: GOO GOO Brand Name: GOO GOO Extension Length: 18 Inches Manufacturer: GOO GOO Hair Co.,Ltd Product Style: Invisi Edge Tape in Hair Extensions Style: Invisi Edge Tape in Hair Extensions Item Weight: 3.52 ounces"