Sometimes you don't want to leave your cup of joe at home. Enter: Portland Design Works' Bar-ista to keep your morning beverage within easy reach. This handy accessory fits most travel mugs and attaches to 26.0mm handlebars. Drop in your travel mug (with a good lid to avoid splash stains) and enjoy the ride. - Constructed of 5052 alloy and lined with rubber to better grip travel mugs - Weight: 71g (2.5 ounces) - Dimensions: 8cm (3.125") diameter at top, tapering to 7.5cm (2.95") at bottom - Lifetime PDWarranty