Cuifati Smart Ring Fitness Tracker - Health Heart Rate, Oximetry, Sleep, Exercise Monitoring - Sleep Tracker/Stress/Heart Rate Monitor Multifunction Health Ring (12#)
| Country | USA |
| Brand | McGraw-Hill Education |
| Manufacturer | McGraw-Hill Education |
| Binding | Printed Access Code |
| EANs | 9781259310034 |
| ReleaseDate | 0000-00-00 |