Universal tablet holder with a practical clamping mechanism for tablets sized approximately 10 to 16 inches in horizontal orientation and about 7 to 13 inches in vertical orientation. The clamping range of the tablet holder is between 155 and 307 mm. The tablet mount is made from bio-based plastic, containing over 50% to 100% renewable plant-based raw materials. Using renewable resources helps conserve limited petroleum reserves and reduce harmful CO2 emissions. The holder is particularly suitable for tablets with protective covers or cases up to a thickness of 20 mm. The overlapping clamping jaws with integrated rubber padding ensure a secure grip and eliminate unwanted vibration noises. The functionality of the device's controls is not affected. The holder is swivel and tilt adjustable, allowing each user to position it individually. The swivel movement can be adjusted from easy to stiff using a clamping screw. The holding arm with clamping prism is suitable for clamping onto pipe diameters up to 30 mm.