Are you asking the question "What kind of racket does the black gold bottom cover have?" The brand's black gold bottom cover includes Xunfeng K520PRO, Xunfeng K520 and Xunfeng AK7.

1. Xunfeng K520PRO: Xunfeng K520PRO is a high-end model in the Xunfeng brand. It has great appearance and is suitable for amateur girls.

2. Xunfeng K520: Xunfeng K520 is a badminton racket that is more suitable for amateur girls, with good looks and moderate price.

3. Xunfeng AK7: Xunfeng AK7 is an offensive single shot of Xunfeng brand. It is made of full carbon material and has strong power and durability.