MAXA1004 Features: * Back support belt * 51pct Polyester, 27pct rubber and 22pct nylon * 24 magnets in the back create localized Bio-Magnetic Field * 8.5" Wide with double pull are designed to provide better fitting and tension adjustment * Helps in rehabilitation and pain reduction treatment after lower back injuries and/or surgeries * Front and rear mesh pockets are designed to hold optional thermoplastic moldable Inserts or hot or cold gel packs * Strong embedded magnets and special far infared or cera heat material help retain body heat, increase blood circulation and reduce pain * Versatile and specifically designed to provide excellent support, warmth and comfort, while massaging muscles and reducing pressure from the lower back * Health Belt is advised for people who lift and move heavy objects, have undergone surgery on the lower section of the spine * Made in the USA * Small: 12.5" H x 3.25" W x 6.5" D * Medium: 12.5" H x 3.25" W x 6.5" D * Large: 12.5" H x 3.25" W x 6.5" D * X-Large: 12.5" H x 3.25" W x 6.5" D * XX-Large: 12.5" H x 3.25" W x 6.5" D Construction: * Breathable construction/soft cotton lining for all day comfort and helps minimize sweating and reduces allergic skin reactions