VIVOTEK, AM-118, Pendant Head, Indoor, For Use With: AE-131 AE-132, AE-151, AM-518, AM-115, AM-116, AM-117, SD8363E, SD8363E-M, SD8314E, SD8316E, Specifications: 1-1/2 in PF Pipe Thread, Aluminum Alloy, White, 140 mm Dia x 55 mm H Dimensions,