Best posture corrector straightener : Freely set the vibration reminder angle. Users can set the angle(range 5-50 degrees) according to age and physical condition. The flash main control chip has a memory function and the data will not be lost when the battery is exhausted or turn off.
Adjustable Design: There is a durable adjustable buckle, The strap is made of soft and breathable material, which will not hurt the underarms and make the shoulders comfortable. Which make it can be adjusted to the chest size ranging from 23” to 42”, so fits men and women and kids. Don’t hesitate to use this back brace corrector for keeping good posture with your partner.