Multi-use PROTECTA Mouse is a mouse-size bait station, monitoring device and snap trap holder -- all 3 in 1. It features four prongs that hold four BLOX bait, indispensable for heavy mouse infestations. Or use it with non-toxic DETEX BLOX to monitor mouse activity. Once mouse activity is detected, replace the DETEX with Bell's BLOX baits or mouse snap traps. Reusable. (12/case)