Application : LeG Effect : Bone Care Material : Tourmaline Powder, Magnetic Balls, Cotton & Polyester Item Type : Braces & Supports Feature 1 : Tourmaline Self-heating Knee Pads Feature 2 : Knee Guard brace Middle Belt Feature 3 : Knee Protector Feature 4 : Knee Pads With Tourmaline Feature 5 : Tourmaline Magnetic Knee Pads Feature 6 : Self-heating,Magnetic Therapy Features 1.Adopt breathable and moisture-wicking fabric, comfortable and skin-friendly for all season long time wear, will not cause any irritation to your skin. 2.Self-heating tourmaline particles will release heat when touching your skin, effectively helping improve micro circulation and promote blood circulation for muscle relaxing and pain relief. 3.Adjustable hook and loop type fastener straps can wrap your knees roundly with enhanced warming effect, you can fast release or close and adjust the tightness to suit for custom fit. 4.Can be used to relieve physical local fatigue and pain, suitable for people who suffer from joint stiffness or muscle ache due to heavy work, bad weather, incorrect posture or improper sports, a good choice for your parents, friends or yourself. Warnings It is FORBIDDEN to be used by people who are pregnant, prone to bleed, suffering from malignancies, high fever, fracture, skin injury, severe hypertension.