EAA Oshkosh Aviation Vintage 25 Years Lapel Pin Hat Tac High Quality Made of metal metal butterfly backing measures about 1.25" Yes, we combine shipping! Use the "Add To Cart" button. (not the buy it now button) (Automatic shipping calculated when buying 10 or less enamel pins/earrings) Whether you buy 1 pin or 4 pins, your shipping cost will be the same. If automatic combined shipping is not working, please request invoice before paying. Some Items can not be combined because of type of shipping or certain packaging requirements. Payment must be made no later than 48hrs after auction ends or purchase is made. Please ask questions, we want you to have a great experience. Thanks! (prices are subject to change) (listings subject to early end) Remember to check our promotions page in our store, for all the latest savings and coupons! https://www.ebay.com/sme/milners-market/offers.html