Personalized Custom Penguin Black Stainless Steel Hip Customizable Flask Easy to Customize - Add your name, a date, your initials, your pets name, your kids name or anything else you can think of! Made of Stainless steel with a Black Matte coating, laser marking removed the black and shows the stainless steel underneath Flask Measures 4.5-inch x 3.75-inch x 1-inch Holds 6-ounces of liquid. Laser marked on one side