The 90-degree stantion base with a "T" shape for 25 mm tubing is a nautical accessory designed for installing stanchions or handrails on vessels. Made from AISI 316 stainless steel, it offers high corrosion resistance in marine environments. Its right-angle design allows perpendicular installation, and the "T" base provides stable and secure fixation. This stantion base is compatible with 25 mm diameter tubing.