You pay us what you see on the invoice, i. Or replace item for you free of charge.We will reply to you within 48 hours. Please kindly wait for us. The item "10PCS L80 Pneumatic Pulsator Safty &Portable Use for Cow Milker Milking Machine" is in sale since Tuesday, March 19, 2019. This item is in the category "Business & Industrial\Agriculture & Forestry\Livestock Supplies\Dairy Cattle". The seller is "dentalmedicalmall" and is located in CA, Ontario. This item can be shipped worldwide.