Feature: Aluminum alloy material is light in weight, only about 1g/piece CNC processing, smooth thread Anodized oxidation coloring, multiple colors available, bright luster, highlighting personality The built-in silicone sealing ring makes it easy to inflate and prevent air leakage. The built-in silicone sealing ring makes it easy to inflate and prevent air leakage. Specification: Product name: adapter Material: aluminum alloy + rubber Wire gauge: external thread 8V1, internal thread 5V2 Coloring: For anodizing Direction: Install it on the Meizui pump to inflate the Meizui tires. Color: red/black/green/gold/silver/blue Package Included: Adapter*1 Rubber cap*6 Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. [Material]:High-quality product,each process is strictly implemented in accordance with process standards. [Size]: Matched to the corresponding model to match your needs, check if it is the size you need before you buy. [Save Money]:Perfect price-performance ratio, save you more money. [Shipment]: We will ship it ASAP,when you place the order. [After-sale service]If you have any questions,please feel free to contact us,we will solve it for you.