A distinctive tensioning mechanism means this holder is suitable for attaching tablet PCs with a height from 120 to 220 mm and width from 160 to 320 mm to a shaft diameter of up to 30mm. The holder is equally suitable for tablets with a protective sleeve or case. A tension spring allows the tablet to be clipped in and removed from the holder easily and quickly. The adjustable, universal clamping jaw with integrated moss rubber protectors ensures a strong grip and eliminates undesired vibration sound problems. The holder does not affect the functioning of the operating controls. The felt-protected adjustable fastening pin provides extra security when the tablet holder is positioned vertically and prevents the tablet PC from falling, even under heavy use. The holder can be rotated to a position to suit all users and the rotation motion adjusted from easy to stiff with a clamp bolt. The tablet holder can be switched between portrait and landscape format and potential slippage is prevented. This useful holder is made of high-quality black plastic by K&M.