The Alphard Golf Alphard TFS Tether Follow Sensor is a golf cart accessory designed to help golfers improve their game. Made of black plastic, this tether follow sensor from Alphard Golf is non-motorized and easy to use. With free shipping included, golf enthusiasts can enhance their push-pull cart experience with this innovative technology that helps them track their movements on the course. Upgrade your golf equipment with this reliable and efficient tether follow sensor.