The "Style GT 99 (synthetic weft) T4/30" appears to be a reference to a specific type of synthetic weft for hair extensions or wigs, with the color combination T4/30.
Here is a possible description for this product:
"Style GT 99 (T4/30) synthetic weft offers a stylish and versatile solution for your hair extension needs. Made with high quality materials, this weft is designed to provide a strong and durable foundation for creating of custom wigs or hair extensions The T4/30 color combination is a blend of dark brown and honey blonde tones, creating a dynamic and attractive visual effect. This versatile color palette is suitable for a variety of skin tones and hair. styles With the Style GT 99 (T4/30) synthetic weft, you can easily add length, volume or highlights to your hairstyle for a sleek, natural look."
This description highlights the product's durability, quality, and specific color combination to help customers understand its features and benefits.