Swing ball heads · China · all prices

No maker publishes sales figures. These lists are built from best-seller and most-reviewed proxies (retailer rankings, review volume, awards) over the last five years — the source is shown under each entry.

1. 玄鸿户外 越障防挂 圆球摇摆铅头钩 (曲柄钩自由链接) — ¥11 / 件（枚数随规格选项，列表未注明）
   Taobao list page '防挂铅头钩' sorted by sales (fetched 2026-09-27): position 14; shop 玄鸿户外旗舰店; ball weight joined to a free-swinging offset hook by a ring; the only round swing head found on the swing (摇摆) keyword pages, all others are teardrop / fish-eye heads Eyes: no; keeper: no keeper.