Adjustable to Fit You Well: the fitness monitor band flexible and adjustable, you can adjust the length to fit your arm well, perfect for most women, men, boys and girls to wear Good Compatibility: our heart rate monitor replacement strap is practical, and compact, compatible with most heart rate sensors; You can choose a suitable length based on the hole, which will not your arm, but not so tight that it brings you uncomfort Widely Applied Outdoors and Indoors: the heart rate monitor replacement band can be worn either on the wrist or on the arm, suitable for many activities, such as rock climbing, cycling, jogging, yoga, running and mountain climbing, to enjoy sports Color: Black & & Orange Material: polyester Size: 20mmX360mm Package Contents: 4 x Armband Strap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.