Trapper T-Rex Rat Trap has many features that are ideal for rat control. NAWAC ApprovedAggressive, interlocking teeth for unmatched holding power. Can be quickly and easily set by hand . Removable bait cup allows trap to be fully serviced without being set. This rat trap also has holes on the side so it can be attached to pipes trees etc. AgriQuality approved for use in Dairy Factories as a Pest Control Device, Category A.