Cup holder, steel spring clamp for 4cm thickness

【Secure Attachment】This cup holder with a clamp uses a steel spring for a secure attachment to the edges of desks or tables, holding cups, mugs, and bottles in place while working, studying, or traveling.
【Water Drainage】The cup holder's hollow reservoir allows water to drain and reduces moisture. The bottom opening also allows a USB cable to pass through when you place a phone in the holder.
【Compatible Surfaces】Designed for desks, tables, and shelves up to 4 cm thick. This side cup holder supports up to 700 g and can be easily installed or removed with one hand.
【Plastic Construction】Made of plastic with a frosted finish, this tabletop cup holder weighs approximately 221 g. It can hold hot or cold drinks and saves desk space. 【Multi-Room Use】Useful in the home office, classroom, game room, hospital, bathroom, or on public transport like buses. It also holds supplies, small accessories, makeup, coffee cups, or water bottles.