360° Rotatable & Space-Saving Design: The anti-spill cup holder features a 360° rotation capability, allowing it to be easily swiveled under the desk when not in use to save space and keep your desktop clutter-free. Ideal for compact desks in offices, dorms, or gaming setups, it includes a U-shaped slot design for cups with or without handles, enabling left or right rotation based on personal habits. This space-saving solution ensures efficient organization without compromising accessibility. Anti-Spill & Leak-Proof Construction: The cup holder incorporates non-slip rubber pads to prevent movement and a raised edge design to avoid accidental spills, keeping your desk clean and uncluttered. It has a deeper 3.5-inch depth and 3.62-inch diameter to prevent splashing, securely holding most coffee cups, mugs, water bottles, or tumblers. Perfect for clumsy moments, curious pets, or gaming rage sessions, this construction ensures liquid containment and desktop protection. Easy to Install and Remove: This clamp-on cup holder uses an adjustable knob for quick mounting and removal on surfaces like office desks, gaming tables, monitors, or shelves (fits 0-63mm thickness). No drilling or glue is needed—simply tighten the knob by hand for installation in seconds, and it rotates 180° for horizontal or vertical mounting. The protective pads prevent desk scratches, making it ideal for university dorms, offices, or painting tables. Built-In Drainage Tray & Ventilation: A bottom drip tray collects condensation and spills to prevent water buildup, while the ventilated base keeps cups dry and hygienic. This feature is ideal for cold drinks or sweaty bottles, ensuring a clean and sanitary environment by eliminating moisture accumulation. The drainage holes allow easy maintenance, contributing to long-term usability without mess or odor issues. Durable Material and Stability: Made of metal and ABS, the cup holder is tear-resistant and more durable than plastic, supporting heavy mugs, hydro flasks, or small plants. It includes anti-slip pads for enhanced stability and a strong clamp with three height levels (adjustable from 0.2" to 2.48") that bears gravity without breaking. The design prevents scratches and includes drainage holes for added safety and longevity.