Shake Weight for Men DumbbellSpecial pulsating dumbbell for shaping and toning upper bodyDynamic Inertia technology ignites muscles in arms, shoulders, and chestIncrease upper body muscle activity by 300 percent compared to regular weightsWorks in only 6 minutes per day; fits easily inside a suitcase or travel bagInstructional "Upper Body Sculpting" workout DVD includedList New $36.95Retails Online $16.99 + S & HOnly Asking $15 Cash New still in box( cell