This microfiber cleaning cloth is 5.75" square and you roll it up to fit in the 3.25" tube, which has a chain for attaching to your bag. This cloth is perfect for making your glasses, magnifier, or other lenses spotless without a scratch. Also suitable for cameras, Ipods, phones, PDAs, and CDs. It will come in handy wherever you use it! Get one for your purse, car, and stitching bag!