SIRUI KS Series Quick Release Ball Head

SIRUI's KS Series covers five low-gravity ball heads sharing the same basic design but scaled differently — KS-5, KS-10, KS-20, KS-30, and KS-40 — each with its own ball diameter, base size, and max payload so you pick the size that matches your gear rather than one-size-fits-all. A "hug the ball" locking knob lowers the center of gravity for better stability during long exposures and low-light shooting, and a friction adjustment (on the KS-10 through KS-40) lets the head hold position consistently regardless of how heavy the mounted equipment is. A quick-release flip lock with side-loading plate and an included magnetic Allen key make setup and disassembly fast without extra tools.

• Five sizes in one series: KS-5, KS-10, KS-20, KS-30, and KS-40, each with different ball diameter, base size, and max payload.
• Low center-of-gravity design: "hug the ball" knob reduces vibration for long exposure and low-light shooting.
• Friction adjustment: on KS-10 through KS-40, keeps the head stable across different equipment weights and holds the setting after adjustment.
• Quick release flip lock with safety bolt: side-loading Arca-standard quick release plate (TY-55KS included) with a dual-lock safety bolt to prevent accidental drops.
• 360° panning base with markings: aluminum alloy construction with a 3/8"-16 threaded mounting hole.