The FLM HB-50 Half Ball leveler for the CP30-L4A II tripod.

The HB-50 features a top-mounted bubble level, and a retractable telescoping handle.

The HB-50 allows up to 15° of leveling adjustment in any direction, making it very easy to level your tripod head without having to make leg adjustments.
The top platform of the half ball, where the head mounts, is covered in a natural cork and rubber composite. This helps minimize vibration, while making the material less susceptible to the effects of humidity and weather. The half-ball adapter incorporates a 3/8"-16 screw that allows you to mount a flat base tripod head with a 3/8"-16 threaded mount. Three included set screws help secure your head on the adapter and prevent it from spinning and coming loose from the adapter.

The HB-50 is only for use with the CP30-L4A II tripod.