EVO RockSliders are manufactured from 3/16-inch laser-cut steel plate and 1.75OD x .120 DOM Tubing. They weld on to the factory frame of the JK to protect the sides and under body from trail damage. The EVO RockSliders are strong enough to support the weight of the vehicle and can be used as a jacking point for a Hi-Lift Jack. The EVO RockSliders STEP offer a sleek, low profile design with increased profile for uses as a step to help enter and exit the vehicle. These will compliment and protect your 4 Door Jeep Wrangler JK. Proudly Made in the USA. Manufactured from 3/16-inch laser-cut steel plate, 1.75OD x .120 Wall DOM Tubing. Designed to protect the JK’s stock body panels. Weld-on installation. EVO 4 Door Sliders work with EVO Long Arm kits.