TV EXTENSION SWIVEL D-340U

D-340U… Sold by the Each. TV Extension Swivel, 140 pound capacity. All Steel ball-bearing extension with ball bearing swivel action. Center hole permits wire passage when needed. Measures 12-3/4 inches in length x 14-1/4 inches in width x 2-1/8 inches height. Extends 15-3/4 inches. Pate is 10-1/4 square