BungyPump SlimLine - Fitness Walking Poles with 8.8 lbs of Built-in Resistance, Easy Weight Loss while Walking, Used in The Biggest Loser Training poles with 8 inches of built-in suspension and 8.8 lbs. resistance; Up to 77% increased calorie consumption compared to regular walking Activates both the upper and lower body, gives a full body workout; Can be used by everyone regardless of age, gender of fitness level Soft and gentle on shoulder and elbows, praised by medical experts and used in rehabilitation Can be used for walking, running and various strength, stretching and endurance exercises; Has over 65 different exercises and complete programs Adjustable length, can be used by the whole family, cork handles, detachable handle straps