Introducing Set Starter, the first fitness product specifically designed to help athletes use time to maximize their training regimen. This innovative new product is designed to be worn on either thumb. It's so small and streamlined, it won't get in the way of your workout. Activate START with the index finger of the same hand. Nearly effortless operation! Choose 1 or 2 timing intervals. Offering vibration and flashing LED alerts. Ideal for any training environment. Set Starter is a patented, non-visual timing device that accurately and conveniently measures recovery time between successive sets of exercise or timed training activities. Set Starter is a totally new and unique product. There are no other products on the market today specifically designed to help athletes use recovery time - an essential part of every workout -- as an ally to maximize their training regimen. Using Set Starter to conveniently harness the power of recovery time and interval training, athletes can now build strength, speed and endurance faster than ever before. Sales in all 50 states and in 20 countries! Thanks!