- Versatile installation options: clamp-on desk organizer can be mounted on top of the desk or underneath. The 3-tier shelf design offers flexible arrangement, and the edges of the storage compartments are raised to prevent items from falling off. - 3-tier shelf design: includes 3 trays (28 x 17.5 cm) plus 1 headphone hook, supporting up to 6 kg without wobbling. Install above the desk for workspace organization or under the desk for concealed storage of desk accessories. - High-quality materials: crafted from rust-proof, anti-corrosive carbon steel. The main bracket is 0.4 cm solid carbon steel with 10 rows of small holes for flexible tray installation. Anti-slip pads enable easy, drill-free installation without damaging the desk. - Adjustable and compatible: comes with a stand for headphones and gaming accessories. The adjustable C-clamp fits desk thicknesses from 1.5 to 6.5 cm. Suitable for attaching to a desk or shelf in a bedroom, study, office, or home office. - Practical storage and usage scenarios: store PC peripherals, tablets, routers, and stationery. Use above the desk to organize keyboards, mice, cables, and small devices; use under the desk to conceal accessories and reduce clutter; ideal for gaming setups or study areas requiring easy access to headphones and peripherals. Please check desk thickness before purchasing.