Adjustable multi-level back stretcher

Adjustable Levels:

It typically features multiple adjustable arch levels (commonly 3 or 4) to accommodate varying flexibility and progress in stretching. 

Massage Points:

The surface often includes massage points or nodes to provide acupressure and help relieve muscle tension. 

Pain Relief & Posture Correction:

This device aims to decompress the spine, restore natural curvature, alleviate chronic back pain, and correct postural imbalances. 

Versatile Use:

It can be used on the floor, on a chair to improve sitting posture, or even in a car seat for lumbar support. 

Material:

Often constructed from durable materials like hard ABS plastic.