The Tug-Of-War Strap with Chest Harness and Trainer's Handle are favorites of athletic trainers.áThis product allows them to resist an athlete's movements at their discretion and at any level of resistance. The Tug-Of-War Strap with Chest Harness and Trainer's Handle include a special wide trainer's handle that is connected to a 10ft/3m heavy duty nylon strap. The opposite end of the strap connects to either a padded harness or padded belt/ Tug-of-War is sold as a system and is interchangeable with harness or belt. Additional belts or harnesses can be purchased separately.