Unique Drinks: The Ultimate Couch Cup Holder is a unique coaster that securely holds all your favorite beverages - hot or cold - on your sofa, couch, armchair or lounge chair (fabric or leather). How it works: Wrap the slipcover around the armrests of the sofa (the armrests should be at least 14cm (5.5in) wide and angled slightly to the sides) or lay it flat, squeezing it between cushions or draping over the backrest. Unique design: Consists of a soft, heavyweight, bpa-free silicone body and an adhesive base for optimal support and integrity of your drinks in adjustable attachments.< /p> Product Features: The ergonomic design accommodates cups and tumblers up to 90mm (3.5") in width (including a smart notch for the cup handle), while the included adapter creates a tight fit for bottles and cans up to 70 mm (2.75 in) wide.