This ideal forklift mount consists of a D size short double socket arm, a square D size plate with a 75 x 75mm VESA hole pattern and 4" clamp base for square post mounting on forklifts. The clamp base will wrap around a maximum width of 4" and is tightened by screwing the two plates together with the included nuts and bolts. RAM® Mounts ball & socket technology dampens shock and vibration, as well as allows for almost infinite adjustment for perfect viewing angles. This D size forklift mount is designed for heavy duty monitor mounting for forklifts, as well as rugged tablets which could be paired with accessory brackets to support keyboards and other peripherals.