Features: 1) Brass or aluminum material, glass interior 2) Specification: E12/15, E12/20X15 3) With threads 4) Finishes: brass-acid wash, brass-nickel plated, aluminum-oxidation 5) Main applications: Christmas lamp bulb holder, and other special lamp bulb base 6) Sea transportation, safe and reliable structure Packing: 15,000pcs/export carton Carton dimensions 47 x 31 x 24mm N.W.: 16kg G.W.: 17kg