Multi-function adjustable cup holder for cups with a diameter of 2.48“-4.13” product description: this multi-function adjustable cup holder is an ideal companion for riding and traveling! The cup holder fits easily on a motorcycle, bicycle, wheelchair, stroller, or even a tractor or boat. Designed to fit between 2.48“-4.13” in diameter, it allows you to enjoy your drink on the go. Main features: Universal Design: suitable for motorcycles, bicycles, wheelchairs, baby strollers, tractors and ships and other purposes. - durability: it is made of high-quality materials to ensure that it will hold your drink in place even on bumpy roads. - easy to install: simple to install so you can fasten it anywhere. - adjustable size: the flexible design allows to adjust the cup according to the different diameters, perfect fit your needs. Whether it is short-distance riding or long-distance travel, multi-functional adjustable cup holder is your most reliable partner, so that you always stay hydrated, enjoy the fun of each trip!