I bought 4 different homicide cases and placed in the attic for rats / mice (it turned out, there were only mice). In these cases this was here, a similar wooden (all classic as we know it), one of Swissino and a "snapper". The latter gave me the best idea of what the trigger mechanism was concerned. So far, however, only those caught here. Zweil times I had Waidmannsheil on homebody, while in other cases the bait is still intact there. I can not explain why, possibly it's just the location that will fit me randomly. Anyway, this funzt perfectly here. For mice slightly oversized, but the action does not detract. The Mechanismuss is sensitive enough for a small mouse.