This hidden flask is extremely discreet and will never be found by a doorman. It looks just like a regular tampon and can easily be placed in your handbag to save money. The tube is leak proof and easy to use - simply slip it into the sleeve, peel off the adhesive strip, and you're good to go. Please note that this flask is designed for women only. The set includes 5 pieces of 1 oz (30 ml) tube flasks and 10 reusable self-adhering wrappers. They are made of food grade plastic and are perfect for taking anywhere - from cruises to dry weddings, festivals, concerts, amusement parks, golf courses, and more. Binocktails has been a trusted brand in secret flasks since 2009, always providing innovative and high-quality hidden flasks. The color of this flask is transparent.