FITCENT Heart Rate Monitor Chest Replacement Strap Adjustable Soft Belt Compatible for Myzone MZ-3 MZ-1 (Not for Myzone Switch) Heart Rate Monitor Adjustable Replacement Strap Fits for mz 3 mz-1 Strap(Not fit for My Zone Switch) Feature: 1.This replacement strap fits for MYZONE MZ-3 &MZ-1 (Not Compatible for MZ-SWITCH) strap 2.With the chest strap based on Nylon and Spandex material, it can be attached to your skin closely. Soft fabrics and adaptive electrodes make it extremely sensitive to your heart's electrical signals. 3.Adjustable size between M-XXL 65~95 cm. 4.Utilizing the same snap attachment method;The sensor transmitter should be removed before clean,the soft strap hand-washed after used,dry it naturally. Package: 1x chest strap replacement (not include sensor)