BESSKY E17 to E27 Base Socket Adapter Plug Converter Light Bulb Lamp Holder * Please check the information of the items and your address, it can avoid unnecessary troubles. THANK YOU ! [* IF YOU LIKE OUR PRODUCTS, WELCOME TO Bessky TO CHOOSE WHAT YOU ARE INTERESTED IN.] 1. Size:6*4cm 2. Material: plastic and metal. 3. Home accessories: Ideal for home use. 4. Suitable for Industrial Locations, Bulkheads. Easy and Convenient to use.