3 Prong Spider - measurement from tip to tip of the prongs
Designed as a spacer and to hold bulb fitting in Tiffany Stained Glass Lamps. Each prong can be cut to size, finished in brass. Add structural support to large or heavy lamps. Three and four-arm spiders can be cut to fit the opening of any lampshade, 7" or less.
(Inner circle measures approx 12mm)