Combined media mail shipping is FREE each additional item after highest shipping cost. Media mail shipping is FREE with a purchase of $50.00 paid in one transaction. If the shipping discount is not calculated automatically please request an invoice or feel free to adjust the total manually at checkout. Please note that media mail tends to take 5-14 business days delivery time through USPS. Please select priority mail if you need the item sooner. I appreciate your business and thank you for shopping with me.