AMPRO Interval Gym & Boxing Workout Timer - Amateur / Professional / Circuit / Club Timer Original and still the best dial gym timer around. - Extra loud audible bell.- 2, 3 and 4 minute round settings.- Rest periods of 15, 30, 45 or 60 seconds.- Interval length can be set for 15, 30, 45 or 60 seconds.- Zero interval option.- Easy to use.- UK mains powered (220V AC). Features an extra loud audible bell, for use in noisy gym's and boxing club environments. Ideal for interval and circuit training use as well as a boxing gym round timer. Easy to use with dial's not switches or digital programmed. Robust and durable gym timer that is suitable for use in a gym environment. Great as a Boxing Round Timer or Martial Art's Sparring Use as well as a circuit and interval training based timer. Package Dimensions: 23.4 x 21 x 13.2 cm Weight: 1.9 Kilograms