Our IPad Steering Wheel holder grips nicely around the steering wheel of your race car. The purpose of this holder is to analyze times and data while in the racecar while adjustments are being made. With our two piece design, the bottom lip of the holder can be changed out to fit thicker/thinner IPad cases as needed. The standard lip is 3/4 of an inch thick, which will allow the thick otter box cases to fit!