Review on Gadjit CUP KEEPER Cup Holder Adapter (2 Pk) - Expand Your Car Cup Holders for Taller Beverage Bottles and Travel Mugs (Black) by Kenneth Witte

They work great on my old machine. Those in there wouldn't even fit in modern cone cups. Remember to measure your existing coasters. Some here have unfairly complained that they're wobbly, but that's because they're trying to use them with their existing coasters, which are too big. Nevertheless, a few remarks. The material is hard plastic, not flexible. There is a recess but it doesn't stretch much. Generally this is good as smaller cups will not fit through. They don't open vertically through the middle - there is a bottom panel where the holders taper down. Overall they meet my expectations and do their job.