Already during the tensioning of these cases you realize the pressure that you have to muster against the spring, as well as ne Kampfratte has little chance of survival depending on how they just go to the bait !! Thank you !!!! As ingenious solution I find ne old plastic tool box which has enough space to let the striker bar snap-contact! Cuts left and right of each hole with 4-5 cm in diameter and provides two traps with bait (Nutella bread) purely to the hole! So caught; s always the head! Larger animals are spared. Man can rub well with tuna oil traps, Holt but then the rats from the neighbor to the farm !!!! Rust-prone ... Top else for the price Lg Peter