TheStack | Speed Trainer | Award Winning App

TheStack Hardware 5 milled Stack weights enable 30 weight combinations between 0g and 300g Dual-purpose weight case / phone stand Highly engineered training club - Adult (41.5") or Junior (38.5") version (see Fitting Juniors) Stack training requires a speed device that can measure swings without ball impact.  We recommend bundling with Stack Radar (Bluetooth connectivity).  View all compatible devices here. TheStack App Training Rated 4.9 with 5,000+ Reviews on App Store Includes 1-Year Membership to TheStack App, accessible on iOS Adaptive speed training formulated by Dr. Sasho MacKenzie Guided workout timer for reps, sets, and rest intervals Custom speed metrics to track your gains Bluetooth Connectivity to integration devices.  Hands-free data entry using voice entry technology for non-integrated devices Membership includes Bundled access to Stack Putting ($59 value) and the Learning Library Train and track up to twenty local (i.e. family) users under one login.  App works w