Food Safe Silicone Cup Cover: This silicone mug cover is made of BPA free, food grade silicone and the diamond knob is made of BPA free acrylic. No smell, reusable, non-toxic.^ Functional Cup Cover for Mug: Good to be used at home, office and especially good as a camping cup lid to keep flies, wasps, and other unwanted bugs out of your drink and good choice to be a outdoor wine cover. It is a portable silicone mug lid cover and silicone drink cover.^ Large Enough for Most Mugs: silicone coffee mug cover.^ Pack Set of 6: 1 color for 1 person.Gift Box Packaging Nice Christmas gift and stocking stuffers.^ Airtight Lid: seals tight on all smooth rims like cups, mugs and glasses. Airtight seal prevents spills. Keeping your drink hot longer than without.A good ccover for coffee mug.