Brand Name: youwinme Origin: Mainland China Meterial of Stylus: Stainless Steel Certification: NONE Single-pin size: 0.8mm 1mm 1.2mm 1.4mm Double-pin size: 2.3mm 3mm 4.5mm 5.8mm Round hole inner diameter: 1mm,2mm, 2.5mm, 3.2mm, 4.3mm, 5.5mm Function: Car Repair Hand Tool Set Plug key Total length: 90-100mm