What's the difference between the One-Way Straws & Select-Flow Valve?
We have three valve options - the One Way Straws, Select-Flow Valve, and Premium One-Way Valve. They all make drinking easier by controlling the direction of liquid - liquid flows up into the straw, but the valve prevents it from flowing back into the cup. This means liquids stays at the top of the straw, so you don't have to suction liquid up the full length of the straw for every sip. For the differences between them, here is a chart:
| One-Way Straws | Select-Flow Valve | Premium One-Way Valve | |
| Pack Size | 10 pack | 3 pack | 1 Pack |
| Cleaning | Disposable | Immediately flush with warm soapy water after each use. Dishwasher-safe. Discard/replace when needed. | Immediately flush with warm soapy water after each use. Dishwasher-safe. Can be taken apart and boiled to thoroughly sanitize. |
| Defining Feature | People usually find these to be the most discreet and convenient. | When you first receive this valve, it's in a restrictive state. It has a very small valve opening, which prevents users from taking a huge gulp of liquid. If this much restriction is not needed, you can trim the tapered end of the valve ¼ of an inch to open that hole and increase the flow. | It's a stainless steel "lifetime" valve. |