The form-fitting styling is a great choice for extra warmth under a helmet

to make you feel part of their world

Pattern Type:Animal

(78" x 80")

inflating volume can be adjusted according to your needs

M4 Heart Rate Monitor Fitness Tracker Color Screen Call Reminder Smart Wristband Color:pink The form-fitting styling is aFunction: Sleep Tracker Function: Message Reminder Function: Call Reminder Function: Blood Pressure Function: Alarm Clock Function: Social Media Notifications Function: Heart Rate Tracker Function: Activity Tracker Waterproof Grade: Life Waterproof Compatibility: All Compatible Language: English Touch Screen: No Screen Type: Color LCD Band Material: Silica Band Detachable: Yes Case Material: ooo Model: M4 smart bracelet Application Age Group: Adult