Features Use Good Material The static unloader is made of high quality 304 stainless steel and PE materials and is very durable for long time use. Static Discharge Touch this static discharge ball for more than 3 seconds, and the static charge inside can be quickly discharged. WIDER APPLICATION Suitable for chemical, metallurgy, petroleum, fireworks, computer rooms, hotels, offices, and more. For more safety: this wall mounted static discharge ball can fully dissipate the static charge of the human body and prevent explosion. EASY INSTALLATION Due to its light weight and compact size, the static unloader is very convenient to install. Specification: Item Type:Static Unloader Material: 304 stainless steel, PE. Power supply: 1 x built-in 1500mAh lithium-ion battery. Ball diameter: approx. 88 mm / 3.46 inches. Ball wall thickness: approx. 1.5 mm / 0.06 inches. Pole diameter: approx. 32 mm / 1.26 inches. Wall thickness of the rod: approx. 1.5 mm / 0.06 inches. Base wall thickness: approx. 3.5 mm / 0.14 inches. Base diameter: approx. 120 mm / 4.72 inches. Total height: approx. 310 mm / 12.2 inches. Installation and Troubleshooting Static Discharger The base of the static discharger is fixed and the ground wire is connected to the grounding grid or stake. If the installation location is not equipped with a grounding grid or ground stake, a metal rod can be driven into the ground to a depth of about 30 cm and then the ground wire can be connected to the metal rod for use. Package list: 1 x static discharger. 3 x wall plugs. 1 set x sign stickers. Note: 1. Please make sure that the electrostatic discharge device of the human body is reliably grounded and checked regularly. 2. There may be a size error. 3. The voice transmission is in Chinese and cannot be adjusted, please do not mind (the transmission sequence is: static electricity is released, static discharge completed, safe) Package List 1 x Static Discharger 3 x Wall Plug 1 Set x Sign Sticker