I use a product from www.slipgripcarmount.com that is custom made to hold my iPad Pro with an Otterbox Defender case. http://www.slipgripcarmounts.com/SlipGrip-RAM-HOL-Mount-Designed-For-Apple-iPad-Pro-129-3rd-Gen-Tablet-Otterbox-Defender-Case_p_214352.html