Bike Mount, Cycling Exercise Bike Mount Treadmill Holder for Apple iPad Pro / Trek HD, Primetime / Motorola Tab (10-12.9) Tablets and Convertible Laptops w/ Anti-Vibration Cradle(with or without case) Quick release strap allows fast / easy attachment and removal of the mount Adjustable swivel ball head mounting connection for maximum flexibility For bikes, treadmills, ATVs, anything with cylindrical bars posts or frames (15mm to 50mm) Digital`s Zip-Grip is designed to hold your Apple iPad Pro with or without a carrying case Adjustable legs keep buttons and ports free