This is a product purchased in 2019. - Conductivity and insulation have been tested simply with a tester. [Important Notes] - Please check the images again. - If you are concerned about minor details, please refrain from purchasing. - Please understand that we cannot accept claims or returns after purchase. *Due to working on weekdays, responses to comments will be delayed, but thank you for your understanding. Also, the product may be shipped on weekends and holidays, but thank you for your cooperation.