★★★★★High-quality raw materials---Adopt aviation aluminum, CNC precision processing, anodized surface, spring buckle, knob lock, with stainless steel anti-skid nails. | ★★★★★New design---The base plate is specially customized for Sony FE 200-600 F5.6-6.3 G OSS lens. The bracket ring replacement foot uses the original factory interface standard. | ★★★★★Applicable objects---The lens holder ring replacement foot adopts the AS standard and is compatible with RRS / ARCA‑SWISS and other ball heads. | ★★★★★Easy to use---The base plate has reserved 1/4 inch and 3/8 inch threaded interfaces, which can be directly fixed on the tripod plate and the quick release plate. | ★★★★★ Fine workmanship---fine workmanship, simple design, easy installation and operation, and convenient use.