The Offbox Stopwatch is an essential tool for match anglers. Use the stopwatch function to accurately time your casts while feeder fishing, or keep track of the clock function to easily check the remaining time of your match. The included 36mm Snaplok knuckle makes it easy to attach the stopwatch to any seatbox leg, so it’s always within easy reach. Includes a 30mm insert for a perfect fit on different seatboxes.