1.This cocktail shaker is made form thick clear glass, with both oz/ ml as unit of measure, only for an accurate measurement.2.The upper part of this martini Shaker uses durable, rustproof and scratch resistant 304 stainless steel, with a thick glass body which is easy to clean.3.This bar shaker literally has inscribed cocktail recipes on the jigger! No need to check to know your favorite cocktail recipes. Beginners or professional bartenders alike, you can use this glass shaker to create the most complex mixed drink at ease!4.Be the Star of the Party Now: Showing your skill with this bar mixer at any party, and being the center of attention by this convenient Bar Tool and recipes!5.Thus keep the product from any smell or stain. The leak-proof seal pad between the mixer and cap also eliminate leakage problems.