The Black Gold series, with black as its main color, features a classic black and gold design, maintaining the traditional eight-layer solid color cue tip craftsmanship. Like the Black Gold series, it offers five different levels of hardness: SS, S, M, H, and HH, catering to the needs of various players. Although the black series is a single-color eight-layer cue tip, to accurately distinguish these five levels of hardness, we still employ the technology typically used for making eleven-layer cue tips, ensuring the precision of the hardness grading.