You are looking at Polar's Transmitter Strap. This product retails for $5.99, but can be purchased at a discount from our retail partner. It is available in various sizes.
Polar Transmitter Strap...
Read more about Polar's Transmitter Strap
This product is in our Running Heart Rate Monitors department. To see more products in this category, or other Gear & Nutrition items, please try our selection of running shoes and gear, listed by category below. We have many other products by Polar in our running shoes and gear store.