SUNWAYFOTO brand Arca-Swiss compatible DT-02. Precisely engineered / exact Arca Standard. 26.5lb Max load! Fluid Panning base. Laser engraved with lock. Modular design with top Arca compatible dovetail. All Metal knobs. For long term durability. All knobs are metal, no plastic or rubber parts. Metal: 6061T651 aircraft-grade aluminum. Top width: 39mm. Base diameter: 54mm. Height: 87mm. Weight: 335g. Max load: 12kg (26.5 lbs). Bottom thread: 3/8" with 1/4" adapter.