Introducing high-quality hobby knife blades made with SK5 high carbon steel by Diyself. These blades are perfect for crafting and precision cutting. Designed to fit Exacto knives, they come in a pack of #11 sharp blades. Ideal for both professional and amateur craftsmen, these blades are a must-have in your tool kit. ***NOTE*** There are 2 shipping options to choose with different costs.*** 1. $1.49 Standard Economy Shipping with no tracking. They are shipped in a plain white envelope to save the extra postage cost below. The $1.49 covers most of the mailing costs. 2. USPS Ground Advantage Package Rate. $5.29 postage cost which covers most of the USPS cost and provides a tracking number. It will be sent in an Air Jacket padded mailer for protection This includes up to a 23% commercial discount passed on to you As of January 2025 the post office raised it?s rates once again, retail, to get a tracking number which you can only get by sending via option 2, First class package. If you require tracking you MUST choose ?USPS Ground Advantage Package? and switch it from $1.49 standard economy shipping to "USPS Ground Advantage" rate DURING CHECKOUT!