The '40s insert is a narrower version of the '70s version, designed for the Snareweight Jr. It also works quite well with the Snareweight #4, offering less dampening than the '70s. These inserts respond to harder hits with some intentional movement, making it ideal for drummers that need variety in the studio where details are exposed. They also tend to give the snare the MOST possible high end presence while still maintaining some level of tone control. The '40s will add to your existing Jr. setup live as well, giving you more colors in a snap for tweaking the snare on the fly.
**Tip** Use just one instead of two for a brighter sound.