KEEP TRACK OF YOUR FITNESS GOALS WITH THE FITBIT FLEX 2 ACTIVITY TRACKER WRISTBAND. THIS WIRELESS DEVICE COMES WITH A REMOVABLE TRACKER AND TWO INTERCHANGEABLE WRISTBANDS, MAKING IT PERFECT FOR INDOOR AND OUTDOOR ACTIVITIES LIKE RUNNING AND JOGGING, SWIMMING, etc RUBBER MATERIAL ENSURES A COMFORTABLE FIT ON YOUR WRIST WHILE YOU KEEP TRACK OF YOUR SPEED, SLEEP, RESISTANCE LEVEL, DISTANCE, AND CALORIES BURNED, BRAND NEW DISPATCHED FREE UK POSTAGE, WITH ROYAL MAIL 48.