1. Black can't be found in dark 2.The mouse easy to catch once the switch in the mouth 3. It can be Eco-friendly 1. Black can't be found in dark,improve working efficiency2.The mouse easy to catch once the switch in the mouth3. It can be Eco-friendly 4,easy to set and release, safety to use5,could be uesd in warehouse, workshop, factory, house,flower shed,garden etc6,excellent quality of ...