TRAPPER Glue Boards are manufactured with low-profile plastic trays, designed to reduce the chance of rodents stopping at the edge of the tray. The trap's narrow lip also keeps rodents from skirting along the edges of the tray and avoiding the glue. Once rodents step onto the glue tray, TRAPPER's tenacious glue will hold a rat securely, while just the slightest contact with the glue will hold a mouse. For best results, place TRAPPER Glue Boards directly in the rodent's runway between its nest and food supply -- every 8 to 12 feet (2.4 to 3.6m) for mice and 15 to 30 feet (4.5 to 9m) for rats. TRAPPER's translucent plastic tray blends with the environment for a professional appearance. TRAPPER Glue Boards are available in rat and mouse sizes. TRAPPER 2-Pack contains two face-to-face glue boards which separate easily for placement. TRAPPER also comes in a bulk size containing 48 glue boards for rats and 96 for mice.