This Personalized Engraved Flask Key Chain makes the perfect groomsmen gift or wedding party favor! Personalize with 1 line of 3 characters/spaces so that your groomsmen never forget your wedding. Gifts for men can be difficult to find but this personalized flask is a popular choice and usually becomes a wedding keepsake, even for "the guys"! Stainless steel. 1 1/2" x 2 1/2" 1 oz.