The soft, flexible silicone tube with a weight allows the baby to drink while holding the cup at any angle; with proper use and care, the accumulation of mold in hidden and invisible cavities is excluded; does not spill when turned over; removable handles; a snap-on lid allows you to hide the tube, keeping it clean and preventing leaks; ideal for travel; dishwasher safe; bright and attractive design; brush for cleaning the tube and weight included. Recommended!