Durable, daily use 5 to 6 belt with 24 1000 gauss magnets;24 - 0.5 x 0.6 magnets are secured on the back;Extra Large is up to a 47 waist;Small pocket for hot or cold packs or stronger magnets (not included);Stretch fabric blend with velcro closure

• MPH 420 Magnetic Extra Large Back Support Belt
• Medium - Up to 36",Large Up to 41",XL over 41" - 44"

MPH 420 Magnetic Extra Large Back Support BeltMPH