OH1 Sensor Size:NO SIZE Everyday cotton fabric feels soft

Everyday cotton fabric feels soft and comfortable

 The classic

the Lynx string offers a vibrant feel and perfect controlGreat performing and durable polyester stringString for the aggressive player looking for a premium string with both control and touchHEAD Lynx Tennis String is an innovative string that features a co-polymer mixtureLength: 12 m/40 ft

Steel tension springs built to last

Squeezable BPA-free bottle lined with Hydroguard treatment

OH1 Sensor Size:NO SIZE Everyday cotton fabric feels softThis optical heart rate sensor offers an easy to use alternative to heart rate chest straps. Works with all Polar BLE devices, Polar Beat and many other fitness apps. Built in memory (4 MB, 150 200h of training time). Updatable firmware. Rechargeable battery (up to 12h of operating time).