Magnetic Lumbar Support Belt

Built-in 21 Magnets 13 magnets in the waist, 8 in the abdomen Penetrates 2–3 cm deep into the skin Helps protect and support the lower back Ergonomic Design Built-in memory steel plate for strong back support Keeps its shape – won’t deform easily Extended heating fabric covers 80% of the area for better warmth High-Quality Materials Made from imported OK cloth: breathable, moisture-wicking, and sweat-resistant Uses premium self-heating magnets to keep your waist warm and comfortable Health Benefits Boosts metabolism and immune function Supports body balance and speeds up recovery 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)