Cornucopia Brands TSA Approved Travel Bottle Kits is a set of four TSA approved bottles. They are 3 oz bottles and are made of silicone. These bottles are BPA free. They are reusable, refillable and leak proof. They are soft and squeezable, making it easy to use lotion in these bottles. These bottles are great for traveling. I can use these bottles to take along travel size lotions, soaps, even sanitizers. Definitely saves space and money when traveling. These are also nice to keep around the house. I can fill the bottles for the kids and label them so they have their own personal lotions. I'm so into essential oils and I can make DIY liquid soaps and lotions to store in these bottles. Overall, a great set of travel bottles. I received these bottles in return for my unbiased review. You can find out more about Cornucopia Brands TSA Approved Travel Bottle Kits @ http://www.amazon.com/Approved-Travel-Shampoo-Refillable-Bottles/dp/B00ZUXJ148/ref=sr_1_1?ie=UTF8&qid=1435607802&sr=8-1&keywords=B00ZUXJ148&pebp=1435607804746&perid=0X31MH7V69WKQR3MEWG3.