●Please be aware of counterfeit products. Environmentally friendly material!!! Please choose rubber type and leather type as you like. The performance is unchanged. This product is a new product for leather types, and it is recommended for its texture ●EPP Leather Type: Size: 19.7 x 19.7 inches (50 x 50 cm); Thickness: 0.1 inch (3 mm) (Double Layer); Material: EPP Leather (Environmental Protection PVC RoHs 2.0 compatible); Surface: Leather (Black); Back: Cushion Material (Blue); Mat Surface Resistance: 10 - 3 - 10 - 4 Ohms ●Accessories: Grounding cord (built-in 100 kΩ resistor); 16.4 ft (5 m) (with alligator clip); 0.4 inch (10 mm) button cord; 3.9 inch (10 cm); Screw-type ground connection cord 19.7 inches (50 cm); *If the cord is not sufficient, please use the exclusive extension cord sold separately. When using 2 grounding goods, please purchase the splitter (Earth Branch Parts) sold separately ●The safety design includes a built-in 100kΩ current limiting resistance to reduce noise coming into the earth and prevent electric shock ●Note: When grounding is done and measuring the electric field cannot be correctly measured with an electromagnetic wave meter. Be sure to check with the grounding measuring kit ●Note: Grounding that connects to the ground can be used with a cord and connected to the ground. Power discharge is possible if the cord is not used. Discharge (discharge) is characterized by gathering electricity in a place where electricity is prone to flow. It will discharge by collecting more than a certain amount. However, please note that no cords are required (wireless) and cannot be grounded to the ground ●Note: In the unlikely event of a bad reaction to the body, we also provide instructions for how to deal with the body. If you contact us directly, we can also inquire you to get an appropriate solution for you