Built-in 21 magnets:13 Pcs magnets in waist, 8 Pcs magnets in abdomen,can penetrate the skin 2-3cm, direct to protect and effect on the waist.

Ergonomic Design:With memory support steel plate,ergonomic design and not easy to deformation,Extended fever cloth, with 80% heating surface.

High Quality Material:Imported OK cloth, breathable, anti moisture, anti sweat;High quality Self Heating magnets, keep waist warm.

Functions:Improve body metabolism and immune function, conducive to the recovery and balance of body function.

Size:

          M: 39.3in(L) * 6.22in (W) / 100cm(L) * 15.8cm(W)

          L: 44.1in(L) * 6.22in (W) / 112cm(L) * 15.8cm(W)

          XL: 48.8in(L) *6.22in (W) / 124cm(L) * 15.8cm(W)