brand new and high quality Features: This conductive rubber Earthing mat measures 11.8x39.4in.Protect your body for health while working/studying/relaxing. Earthing helps with reducing inflammation, muscle and joint pain, aches, sprains, arthritis, and help increase day for time vitality, digestion, blood circulation, speeding up recovery, better sleep, reduced stress and anxiety, reduced electro sensitivity and more. A better, deeper sleep and reduced joint pain this Earthing Mat provides free radicals and natural anti-oxidants to help neutralise the body again. You can use the Earthing Universal Grounding Mat as a mouse pad when you work, You could also step on it connecting earth while working. Earthing therapy blocks and reduces electromagnetic wave absorption .(This product does not shield magnetic field. It does not block all the frequency bands of the phone but reduces the signal.) Reduces rising potential due to absorption of electromagnetic waves, and gains natural negative ions through the ground line connected to the ground, and keeps you in an isopotential state as possible. According to the earthing therapy Test the improvement of blood flow by eliminating the phenomenon of red blood cells due to electromagnetic waves, reduction of pain, improvement of sleep quality by increase of melatonin, reduction of stress hormone cortisol. Specification: Plug: US Plug Material: PU,Rubber Color: Black Size:app. 11.8x39.4in Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Earthing Universal Grounding Mat 1 x Grounding Cords(other accessories demo in the picture is not included.)