Snap-It Adjustable Cup Holder

This cup holder adjusts to fit the smallest to the largest beverages.  The mount can be mounted to 3/4" to 1-3/8" tubes.

From Snap-It:

Tool-Free Adjustable Drink Holder conveniently snaps to 7/8", 1" or 1 1/8" diameter tubing commonly found on walkers, wheelchairs, scooters, and transfer chairs.  Drink Holder adjusts to hold a wide variety of drink containers from large 3 5/8" diameter sport drink bottles down to small water bottles and aluminum cans.  Click on the image to see additional photos demonstrating a range of adjustment.