Open wall-plate design allows for greater wall access and cable management1-touch tilt allows ajustment of 15 to -5 with optional lift lock in 5 incrementsHorizontal screen adjustment up to 8 for centering screen on wallEasy-glide brackets hook onto wall plate for fast installationFits screens with mounting hole patterns up to 29 W x 17 1/2 HPT650 supports up to 175 lbs., PT660 supports up to 200 lbs.Length: 31.75Width: 8.50Height: 8.50