Despite the fact that all funnels work on the same basic principle, they are not all created equally. The Collapsible Funnel does stand out from the crowd. The funnel is made from silicone, making it flexible. It collapses so you can store it flat, rather than trying to shoehorn a good-size funnel into a drawer or cabinet. It's also nonstick, and skid- and slip-resistant, making it easier to work with.
The Collapsible Funnel is heat resistant up to 425 degrees Fahrenheit. Not only does that make it safe to run through the dishwasher, but it also means that you can run hot liquids through the funnel without worrying about accidentally melting it--something I've been known to do with the sets of plain plastic nesting funnels. The Collapsible Funnel measures 4 inches in diameter and 4 1/4 inches in height (when it's open). It's large enough to work well with big batches, like getting soup into containers, but small enough that you can easily use it with more delicate projects, such as filling up the pepper shaker. The Collapsible Funnel is referred to as a full-size funnel by the maker, but its flexibility lets it handle projects that you might typically need a bigger or a smaller funnel for. The funnel is available for $3.95.