Adjustable lumbar back stretcher/ massager

Adjustable Arch Design: Most models feature three or four adjustable levels, allowing users to customize the intensity of the stretch based on their comfort and flexibility.

Acupressure Nodes: The surface is typically covered with approximately 88–98 plastic "needles" or nodes that stimulate the back and provide a massage effect to relieve muscle tension.

Cushioned Support: A central soft traction strip or foam pad (often in blue, as shown) provides cushioning for the spine during use.