For serious mouse problems you can’t go wrong with the Tin Cat Repeating Mouse Trap with the Solid Top (Model M312). This paticular model is more discreet than the Tin Cat clear top , so that caught mice cannot be seen until the trap is opened. The Tin Cat Mouse Trap Solid Top is a live-catch trap that is easy to use, catches up to 30 mice at a time, and requires no setting. Simply place the trap along a wall where mice like to travel and it is ready to go. Inquisitive mice will enter the trap, triggering a lever that will trap them in a holding area inside. They can get in, but there is no way out until you release them. Dimensions: 10.25′ x 6.25′ x 1.75′. (MODEL – M312) Optional add-on: Many customers want the repeating catch capability of the Tin Cat but don’t want to deal with live mice. In this case, we suggest that you also buy Tin Cat Glue Boards M309 , which fit perfectly inside the Tin Cat. The mice will stick to the glue board and eventually die. The glue boards provide for easier disposal of the mice.