The most vulnerable areas on the body of the Jeep JK are the rocker panels. Poison Spyder Rocker Knockers protect your JK's rocker panel area while enabling you to slide over rocks and obstacles. Rocker Knockers enhance your Jeep's trail performance while adding rugged off-road looks to your JK. Poison Spyder JK Rocker Knockers are engineered for brute strength and impact resistance by attaching to the Jeep's body in 14 strategic bolt locations. The mounting plate is CNC laser cut from 3/16" plate steel and precision brake-formed for a perfect fit. The tubular rocker rail is rugged 1.75" X .120 wall DOM structural tubing. The slider rail is fabricated from CNC-bent 1.5" X .120 wall DOM tubing. The space between the Slider and the main tube of the Rocker Knocker is filled with a CNC laser-cut Slider Skid. The Skid features Poison Spyder's exclusive oval dimples for structural strength as well as great Poison Spyder looks. The Skid attaches with countersunk stainless steel flat head cap screws for a flush surface. The Slider and Skid mount at an angle to the main tube of the Rocker Knocker to provide boatside-like protection from the rocks while keeping the Jeep's doors and body a safe distance from higher level trail hazards.