Desk-clamping single cup beverage holder. Safe & convenient drink storage: prevents clutter & spills. Great for mugs, tumblers, plastic cups, & drink containers up to 3.3”/84mm-wide. Rubberized top ring & base grips cup to prevent spills. Securely clamps to desk edges up to 2.5”/64mm-thick. Product dimensions: 5.75”/146mm (l) x 4.5”/114mm (w) x 4.6”/117mm (h), net weight: 0.5 lbs./0.23 kg.