I Being a student hate this new gizmo which was released recently.But For parents except mine would prefer these to them as these will help them to study ,and make them go into universities like Harvard,Oxford universities. So The Study Ball is a prison-style ball and 16.5-inch chain with a built-in, programmable timer. Select the desired duration of the study session and chain the ball to the ankle in question, and the steel manacle won't come off until the scheduled time is up. A red LED indicator shows progress by displaying the "Study Time Left." Sound like good fun? More fun than having to settle for a second-choice college, we guess. The $115 Study Ball weighs about 20 pounds, which makes it difficult to get up and stroll out into the prison yard while wearing it. Fortunately, the gadget comes with a safety key that can open the shackle at any time--a welcome feature if the wearer needs to take a bathroom break. Also fortunate: the device can't be programmed ...