1Spool drop down design with screw, easy to open and close 2Airtight for better ventilating and cooling 3Ready to use package 8 inch Hydroponics reflector(Steel cool light reflectors) ITEM NO.:67010015 Specifications:1)Spool drop down design with screw, easy to open and close.2)Airtight for better ventilating and cooling.3)Ready to use package. 8 inch Hydroponics reflector(Steel cool light ...