After the mice have days weggeschleckt of the simple wooden snap traps the Nutella, four Neudorff traps were ordered. Delivery of Zoo Garden Centres Munich in one day. On the first night, both drawn up traps have been sprung reliable. The spring is very strong and kills the mice in my view immediately. Even removing is very comfortable against the wooden snap traps, since you do not have to touch the mouse. Very good product.