<p>This hip flask is made of durable stainless steel. Its sturdy and has a simple-to-use screw down cap. The smooth steel surface is perfect for engraving and the flask holds 4oz of liquid. On the front there is a Trinity Knot; the simplest of Celtic Knots symbolizing a triune God. For the Celts everything came in threes maid mother crone and the three elements earth fire and water. Christianity embraced this knot to symbolize the Father Son and Holy Spirit. This use of this trinity knot in art is associated with eternity and eternal love. This is a great gift from Ireland to keep someone warm on a chilly day!</p>