Please check as much as possible to make sure the item is the one that you need. Please allow 0.5-1 inch difference due to manual measurement. There are no instructions included in this kit.We will provide help as much as possible. The item "150 PSI Air Compressor for Car Truck Train Horns Bag Suspension with 1/4'' Hose" is in sale since Tuesday, March 10, 2020. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Interior\Steering Wheels & Horns". The seller is "unopery" and is located in Shenzhen. This item can be shipped worldwide.