UNIVERSAL COMPUTER MONITOR WALL MOUNT ARM: Fits monitors and TVs up to 32 inches and 17.6 pounds with 75x75mm or 100x100mm VESA square bolt hole patterns, which are found on the back of your tv / monitor (if unsure of size, measure distance between bolt holes in millimeters). FULLY ADJUSTABLE: Single VESA wall mount can tilt, swivel, raise and/lower - and screen has 360 degree rotation. Turn hex bolt on top of computer monitor arm to adjust the gas spring tension to hold screens in place.