These unique shatterproof balls feature a mercury glass finish with a ribbed design Shatterproof ornaments combine the beauty and luster of real glass with the unbreakable practicality of plastic Product Features Color clear bulbs / white wire Number of balls 3 Total number of bulbs on string 20 Bulb size mini Spacing between each ball 8 Lighted length 1.5' Total length 2.6' 13 lead cord Additional Product Features UL listed for indoor or outdoor use Steady burning bulbs Contains 1 plug with end connector which allows you to stack multiple sets of lights together not to exceed 210 watts Comes with replacement bulbs and spare fuse Ornaments come ready-to-hang with silver hooks Wire gauge 22 120 volts, 60 hertz, .08 amps, 9.6 watts Dimensions of each ball 5.75 diameter Material s plastic light covers/glass bulbs/wire/metal