Stri-King is s one-of-a-kind easy-to-use Martial Arts training device that turns most ordinary heavy bags into an interactive trainer. STRI-KING fits securely around most heavy bags (must be 14" diameter or larger bags) and is designed to enhance the users punch kick and punch/kick combinations similar to target pad training with an instructor. STRI-KING has strategically placed sensors flash blue or green to let the user know whether to punch or a kick to that area. No two work-out sessions are the same with STRI-KING as it was designed to deliver random single and multi-strike combinations during the 1 3 or 5 minute work-out sessions. STRI-KING was specifically designed to improve cardio fitness striking speed accuracy and power. STRI-KING is a great training tool for instructors to observe their students striking techniques and it is perfect for use in circuit training.Stri-King Increases:Cardio PerformanceReaction TimesStriking SpeedAccuracy PowerTarget Strike TrainingEasy-to-use and Transportable DesignHigh Quality Rugged ConstructionInstructor and Student testedStri-King Highlights:Target Strike TrainingEasy-to-use and Transportable DesignHigh Quality Rugged ConstructionInstructor and Student tested.