1 Clip-on Coaster (Black), Tabletop Coaster for Table, Bottle, Coffee Mug, Water Cup, Universal Clip-on Coaster for Home or Office Premium Material: Made of thick plastic and a metal spring, this clip-on coaster, in a classic and simple color, fits different types of tables. One Size: 20 cm × 10 cm × 5.5 cm (7.87 in × 3.93 in × 2.17 in), Weight: 220 g (7.8 oz). Ideal for storing on your desk. 7.6 cm Opening: This coaster has an 8.5 cm diameter opening that fits most of the cups we use daily. And there's a small hole at the bottom for charging your phone. Strong Grip: The clip-on cup holder with a metal spring can be firmly attached to the edge of your desk to prevent water from spilling or leaking onto your papers if it accidentally spills on your cup. Wide Application: Make reasonable use of the corners of your table and place this clip-on cup holder to store items such as drinks, water glasses, tea cups, bottles, fruit, potted plants, mobile phones, chargers, and other small items. Note: There may be a slight color difference due to lighting and angle, as well as screen brightness, etc. The size is measured by hand, so there is a 1-2 cm error. Packaging Details: 1 x Water Cup Holder (Cup not included)