but still I almost always end up slicing the contents as well as the envelope.

It feels like you're just running paper through nothingness, the envelope pops out, even when it stays in the edge doesn't split open very well

Does a really good job opening envelopes.

It doesn't work on irregular or padded envelopes, though.

Once you get the hang of using this little opener, it makes opening envelopes a lot easier.

Makes convenient openings​ without destroying the envelope it came in.