This set contains two leak-proof reusable water bottles with fun artwork that will give your kids a reason to carry water with them. They are made of durable plastic, which is BPA-free and food grade quality. The flex lid is easy to disassemble for cleaning and fits on any other Genesis bottle. Additional features include an easy-open push button lid and convenient carrying handle. Everything is completely BPA free and can be washed in the top rack of the dishwasher. Do not microwave.