The Acratech Ultimate ball head is a lightweight, well made ball head with a unique 45-degree clamp which provides extra range of motion at the "front"- ideal for macro use, according to Acratech. The clamp is extremely solid, as you might expect, and there's a separate, well-damped pan control on the base with laser-engraved angle markings in 5-degree increments. There's an Arca-type clamp up top for camera mounting (plate is sold separately). Function is excellent; cosmetic condition is good overall, with a few scuffs and scrapes which don't affect function. Supports up to 11kg (25lbs).