This pack of 6 short One Way Drinking Straws, contains six 180mm (7") long straws, that are best suited for use with shallower types of drinking vessels such as cups or mugs. The one way drinking straws havea built in one-way valve that prevents the fluid from dropping back down the straw between sucks, reducing the effort and coordination required by the user to drink independently. One way drinking straws also help to prevent the accidental ingestion of air, which can lead to bloating and discomfort for the user. The straws all have a small but effective plastic clip that can be used to secure them in a fixed position on the rim of the cup or glass if required. The straws can be washed normally between uses or a clever little way of cleaning the straws thoroughly is to pop them in a small bowl with a denture cleaner and leave them to soak, remember to rinse thoroughly.