Patrick from Deltona Florida writes
Contrac does not contain glass. It contains food based ingredients that attract the rodents to the bait for consumption. It is an anti-coagulant which means once the mice eat this product they begin to bleed to death from the inside. The mice first become sick, and then grow tired and weak and pass in their sleep. It can take anywhere from a few hours to a few days depending on how much the mice have eaten. They do not need water for the product to work.
Answer last updated on: 11/11/2013
