Rotating snack lid design is simple to open & close for easy access; tumbler lid screws on to reduce chance of spills; Fits in most car cup holders;Lid is translucent for easy visibility of snack contents; durable lid design with no hinges to break and it stays closed if dropped;Snack portion of container removes from tumbler for individual use and easy cleaning; straw removes for easy cleaning;Made of BPA-free, break-resistant plastic; top rack dish washer safe; do not microwave