This is a pair of near new condition stereo bookshelf speakers. 18" tall, 11" wide, 11-1/2" deep. Weigh about 20lbs ea. 8" woofer. 1" tweeter. Originally made for use as stereo monitors. These speakers can handle 75 watts RMS and 300 watts peak. They crank out the tunes effortlessly without distortion and they look darn nice doing it. They do a mighty good job in a 15' X 15' room paired with a 10' JBL subwoofer. They have been well cared for and function flawlessly with very minimal signs of usage with only two tiny nicks at the top front of one of the cabinets. They each have a heavy duty Omni-Mount plate that bolts to the side for mounting them at your chosen position. Ball arms are not included. The position of the driver's distance from the tweeter makes them suitable for horizontal positioning if desired. These are a great pair of versatile speakers. They have enough power to serve as your main front speakers or surround speakers if desired. You know they're great when they carry the name JBL.