can anyone tell me how to get this stick? (pics)

[sack]

where do i buy this stick for the towel holder?

[BigDon]

Try your local DIY Home Repair Box store (ie; Lowes, Ace hardware, Home Depot). You can also find them on Amazon.com. You'll need to know the distance between the two holders. Go to Amazon and type in the search phrase "replacement towel bar". (without the quotes)