It must be different to send a leader. You mean the belt, but the belt is a bit gaudy, so it must be colored. Last time I saw my friend off, I ordered a blue primary color in Xichi Workshop, which was especially high-grade. After using it for several months, it began to change color and shine. Every time I see this friend, I always mention this belt. Xichi workshop is on Xi 'an Road. You can search Baidu map or public comment.