This page includes all of the specific details of the selected feat as well as the Section 15 entry of the OGL for the product from which the feat comes. Feats listed in the Prerequisites section should be linked as well.
Your ranger traps are especially difficult to notice and avoid.
Trap class feature, ranger level 5th.
Add +1 to the Difficulty Class on all Perception and Disable Device skill checks to find or disable the traps you make with your trap class feature. Add a +1 to the Difficulty Class on all saving throws against the effects of the trap you make with your trap class feature.