The Ultimate Anti-Spill Drink Holder, Black NO MORE SPILLS: Unlike regular coasters which leave your drink vulnerable to tipping over, The ultimate anti-spill drink holder, securely holds all your favourite drinks - hot or cold - on any table surface, virtually eliminating the possibility of ever spilling a drink again. WHERE TO USE: Use on desks, around your favourite tech, on bedside, coffee and kitchen tables, in boats, cars and caravans, on garden furniture or around pets. In fact, just about anywhere you want your drinks to stay upright! HOW IT WORKS: outer wall deflects accidental knocks and bumps down to a unique micro-suction base, instead of side to side. The micro-suction creates a strong, temporary bond to flat, smooth surfaces like glass, plastic, metal and wood, which can be re-positioned over and over again without losing any sticking power. leaves no residue upon removal. COMPATIBILITY: ergonomic design caters for mugs and tumblers up to 3.5 / 90mm wide (incorporating a clever slot for cup handles), while the adapter supplied creates a snug fit for bottles and cans up to 2.75 / 70mm wide. Please check the diameter of the drinkware you intend to use with before purchase, as smaller drinking vessels will not fit. INSTRUCTIONS: Peel the protective film off the micro-suction base. Press the firmly down on any flat, smooth surface to engage the suction. To remove, simply tilt the from one side to release. If the base becomes dusty or dirty, wipe clean with a damp cloth and air-dry to restore the suction.