Unbranded (China-made) Tial-style 50mm blow-off valve in black, with vacuum nipple and adjuster stud on top.
Includes a silver aluminum pipe (approx. 2.5") with welded-on BOV flange, a bag of fittings and hardware, and a second sealed flange/gasket.
New and unused; kit appears complete. No brand or part number markings. Not a genuine Tial product. Sold as pictured.