Adjustable Clamp-On Desk Cup Holder with Screw-Tightened Mount

This clamp-on cup holder attaches to desk edges, table sides, or chair armrests, providing a secure place for beverages. It features a round cup holder body with an open side cutout for easy placement and removal of handled mugs and glasses. The screw-tightened mounting bracket is controlled by a black adjustment knob underneath, offering an adjustable clamp range of 0 to 5 cm. Dimensions: 9 cm opening width, 4.6 cm height, 4 cm top clamp width, 2 cm top contact point depth, and 3.5 cm base width. It secures tightly without damaging furniture, keeping drinks off the main workspace to prevent spills.