Features: 1) Brass or Aluminum material, glass interior 1) Specification: S15S/19, S15D/19 2) With threads , without angle 4) Finishes: brass-acid wash, brass-nickel plated, aluminum-oxidation 5) Main applications: auto lamp bulb base 6) Sea transportation, safe and reliable structure Packing: 5,000pcs/export carton Carton dimensions: 47 x 31 x 19mm N.W.: 11kg G.W.: 12kg