Used when leading animals in a string, the Sopris Bungee Pack String Loop is a shock cord loop with a panic snap that attaches to the Sopris Classic or Roughy saddle (the loop is run through the arch and over the top of the rear saddle horn). The pack string loop absorbs the shock if the trailing animal is caught off-guard or balks. If there is any kind of trouble in the string, one quick jerk of the panic snap sleeve by the handler will release the trailing animal.