Origin:Mainland China Effect:Release Pain From Illness Item Type:Braces & Supports Model Number:ZF-HY5504-Gray-KS Number of Pieces:One Unit Material:Composite Material Application:Waist Strong Back Stretcher Waist Support Brace Decompression Lumbar Back Belt Orthopedics Herniated Disc Pain Relief Dropshipping Size: S: Fits waist circumference 60-70cm/23.6in-27.6in. M: Fits waist circumference 70-85cm/27.6in-33.5in. L: Fits waist circumference 85-97cm/33.5in-38.2in. XL: Fits waist circumference 97-125cm/38.2in-49.2in. Features: Double Belted Back Pain Relief: Both sides of the hook and loop fastener straps for more suitable size. Anytime & Anywhere : Back support available at home. Strong Back Stretcher : Stretches the muscle tensions from the lower back and lumbar stiffness. Back muscle strengthening: Allows muscles to move left/ right freely through back decompression even while wearing in everyday life. Effective Back Pain Treatment: Waist pain treatmet available through effective lumbar support from vertical inflatable columns.