The AST420X is a highly portable professional flat-panel TV/monitor stand with a five-leg base that has five casters/wheels for easy transportation, allowing the stand to be used in both indoor and outdoor functions, including auditoriums, conference rooms, gyms, clubs, and karaoke venues. Due to a versatile mounting plate, The stand can also be used to mount karaoke monitors and teleprompters. Two of the five wheels of the stands base have an easy locking device that prevents the stand from rolling. The casters/wheels of the stand are also removable, and once removed, the stand can be bolted to the ground. In addition, the stand includes two padded microphone holders on two bars extending from both sides of the mounting plate. Finally, the stand includes a sturdy safety pin that locks the pole at specified heights. Made with high-quality craftsmanship in Taiwan, all components of this stand are composed of both durable high-carbon steel and the best grade heavy-duty virgin plastic. The stand can support a flat-panel TV of up to 23" And 33 lbs., and the stands height can be adjusted from 34 inches (lowest) to 48 inches (highest). the mounting holes on the mounting plate accommodate two Dimensions: 75 x 75 mm and 100 x 100 mm. Multi-functional and convenient, the stand can mount a variety of flat-panel monitors and is ideal for both indoor and outdoor uses requiring frequent transportation and portability.