It is merry Christmas rope light with milky PVC, 1/2'',  horizontal, 2wires, 45m per roll.
Rope light, senior liner decoration lighting, is  composted by excellent PVC and a serial miniature bulbs which are inserted in  the PVC tube in series or in parallel regularly.
2-wire rope lights, also known as steady burn rope  lights, contain 2 internal wires- a single circuit wire and a common wire.  2-wire rope lights are always on or always off and cannot be made to chase.  They may be made to flash or fade by purchasing our optional CONTROLLER.
 It is widely used for decorating or illuminating your home,  or business, creating figure, or building Christmas sign display in many  occasions such as corners, ceilings, staircases, decks, driveways, boats,  galleries, clubs, parties and holiday.        http://www.lightdg.com