Adoro Silent Beater

I bought this beater to go with the silent sticks, so I could practice acoustic drums without the volume. You can even play without ear-protection If you are not a heavy hitter (but proceed with caution!). I seems sturdy enough, but time will tell.
It's definitely silent enough to keep your neighbours from getting cranky. The downside of these products is they feel a lot different from regular beaters/sticks because of their light weight. But I guess that is a inevitable trade-off for being silent.