Unlike plastic straws, your kids can chew on these straws and not ruin them. Because it is soft and flexible, silicone is the safest reusable straw material available. They will fit in all of our straw hole lids except daisy lids. Ideal for large jars, up to 64oz! The most reliable way to clean reusable straws is our straw cleaner with soap and hot water. They are also dishwasher safe, or a quick rinse might be sufficient. You can also boil these to disinfect them if you want to. My personal cleaning routine is to rinse them after use, put them in the dishwasher, then run a straw cleaner through them and rinse again before putting them away. My dishwasher usually gets them clean but sometimes leaves a little residue so this ensures they are clean. Every day, 500 million disposable straws are used in the US! Start being part of the solution instead of part of the problem! Silicone straws are: * Very durable * Reusable and long lasting * Eco friendly * Dishwasher safe * Safe for all types of foods and beverages * Free of chemical leach Jars and lids are sold separately.