Compatible with 7.9'' to 12.3'' tablet, the THMS 1 easily clamps onto round tubes with up to 35 mm diameter and square tubes of 25 mm. Adjustable arms securely hold your tablet, and the smart ball joint design enables ultra-flexible positioning for the perfect viewing angle. The durable lightweight construction integrates a convenient bracket which can be used as a powerbank tray or can be mounted to the ball joint to function as smartphone holder.