This listing is for a ( Pack of 3 ) Uprok 4mm Adapters.This adapter works with male cans with a 4mm valve stem. Use all of your favorite old school caps on the new male valves! This adapter makes it all possible.COMPATIBLE BRANDS• Valspar• Rustoleum Turbo• Rustoleum Universal (Trigger cans)• Krylon Fusion• Many Asian, Australian and South American male valve cans Yes – we offer combined shipping! Add all of the items you wish to purchase by using the “ADD TO CART” button, then you will see the total cost of shipping at checkout.We have a wide variety of markers, refills, and spray paint caps to choose from. Check out our other listings right here on eBay!If you have any questions about this product, or other products we sell, please do not hesitate to contact us.