6th Anniversary Commemorative Illustration Clear Postcard: Hozuki Touken Ranbu ONLINE Hiuga Masamune Immediate purchase welcome Size: H148mm x W100mm (postcard size) I put it in a thick bag with the included postcard seal immediately after purchase. It will be reinforced with cardboard to prevent bending and shipped in an envelope. This is a clear postcard with an illustration from the 6th anniversary celebration. You can use the included postcard seal on the back to use it as a postcard.