Oxo's salad dressing bottle opens wide for adding ingredients and makes for easy cleaning. You can open and close this bottle with one hand, and it seals easily when you want to shake up that good oil and vinegar. Bottle holds 1 1/2 cups and has convenient western and metric markings for all of your salad dressing recipes. Awesome tilt tip allows top and bottom liquids to flow evenly, for when your dressing has good tid bits you don't want neglected at the bottom! No BPAs in this bottle, and it's dishwasher safe. So great!