Description: Product Name: Valve Extension Tube Application: American valve Material: pure copper Dimensions: bottom outer diameter 10mm, bottom internal thread 8V1, head external thread 8V1, total length 40mm This copper extension tube has 3 angles and two colors. It is suitable for tire inflation of motorcycles, ordinary cars, wheelbarrows, etc. It is common to all American valves. It is exquisitely made of 62 copper, beautiful appearance