Multi-level Adjustable Back Stretcher

Description: Material: ABS plastic + sponge pad Level: Three gear adjustment Scope of application: cervical spine, lumbar spine, legs Maximum acceptable weight: 250,000 grams / 551.16 pounds Packing size: 400 * 250 * 30mm / 15.75 * 9.84 * 1.18 inches Package weight: 540g / 19.05 ounces (Note: Due to manual measurement, please allow slight measurement deviation.) Feature: 1. Three levels of adjustment: three levels of adjustable angles, the back arch angle can be adjusted as needed to meet the needs of waist training 2. Function: Equipped with 88 massage points corresponding to the body acupoints. It can massage the lumbar spine when stretched, and can correct the sitting posture when sitting. 3. Material used: made of high-quality ABS plastic, environmentally friendly, tough and tough, pressure resistant, compact and portable design, easy to carry 4. Matching use: There is a soft sponge pad in the middle, which can cushion the impact and provide better protection for the waist 5. Ap