Sure, here's a refined and simplified title focusing on the product keywords in English: Seamless Clip-In Human Hair Extensions - PU Skin Weft, Kinky Straight, 16 inches, Natural Black

The Product's Hair Material: 100% Brazilian Human Hair The hair extensions are made from 100% Brazilian human hair, sourced from young girls. This material is softer, more natural, and more suitable for the skin compared to other materials. It is also more advanced, allowing you to dye and bleach it to suit any hairstyle you desire. The hair blends perfectly with your natural color, providing the volume or length you're looking for, while restoring the material and touch of real hair.

Skin-Weft PU Clip-In Hair Extensions These PU clip-in hair extensions press the hair onto a PU (polyurethane) base with clips, making them more invisible, comfortable, natural, and lighter. The PU design fits your scalp more discreetly, blending closer to your skin tone. The outer PU part on each piece is shorter than the inner PU part, enhancing the invisible appearance.

Thicker and More Convenient PU Clip-Ins The PU clip-in hair extensions utilize the latest skin-weft technology, ensuring a more even distribution of hair on the PU strip compared to traditional clip-ins. The 12-inch to 20-inch extensions weigh 120g per pack, while the 22-inch to 26-inch versions weigh 130g per pack. For thick hair, we recommend 1-2 packs to add weight and 2-3 packs to add length. For thin hair, we suggest 1-2 packs to add length and 2-3 packs to add weight.

Comfortable and Fitting PU Clip-Ins The PU clip-in hair extensions feature updated soft PU strips, eliminating stiffness and pleating. As they are made with 100% human hair, they can be dyed and styled to your preference. The soft PU strips ensure a seamless fit to the scalp and prevent deformation over time.

Quick and Easy Application Applying these hair extensions is a fast and easy process. Each hair weft comes in different widths to meet the needs of various parts of the hair. With just 5 minutes, you can easily and quickly add volume and length to your own hair. Each pack contains 8 pieces of varying widths and a total of 18 clips to suit your specific needs.

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