The Personalized Gift 6 Piece Custom Engraved Flask Gift Set, Black We believe in making great products. That's why we have our flasks manufactured exclusively for our company with extra thick 5mil, premium 18/8 grade #304 stainless steel. This makes a flask that is both highly durable & resists denting as well as rust/corrosion. #304 grade steel has 20-30 times more corrosion resistance than #201 steel - our flasks are true stainless steel and do not rust even under heavy use! Our flasks are professionally powder coated with a sleek matte black finish, then engraved with extreme precision by our state-of-the-art laser, creating a deep black engraving in your design of choice. The resulting imprint is amazingly crisp and very durable - perfect for frequent use! Engraving is forever! The engraving is permanent, and made by a laser (awesome) so it will never rub off, fade, or peel. We can engrave any text - so let your imagination soar! Customize w/ any text! Choose from any of our design templates, located in the last image of this listing. Personalize with up to 4 lines, each up to 30 characters. We can engrave any text, simply send us a message after ordering with your style choice and exact text for engraving! This gift set comes with flask, funnel, and 4 steel shot cups in black presentation box. The Black Presentation Box is made of thick, sturdy cardboard with a glossy black finish on the outside. Check our other listings for different gift box options :)