Designed by artists for artists, ImpressArt metal stamps will make a lasting impression on your jewelry. These professional quality stamps are manufactured to the highest standard for durability and alignment. Designs are precision-cut from carbon tool steel, hardened to last project after project. Impression Size: 6 mm Some helpful questions are answered here: https://www.etsy.com/shop/metalsupplychick/policy?ref=shopinfo_policies_leftnav I ship same day and next day. Two people are filling orders both day and night. If you need something sooner, please upgrade your shipping. If it is a letter set it usually goes priority anyway. Convo me if you need express or select on some listings from the drop down menu. ****Sometimes products are out of stock. I will contact you for a swap or refund for you.************* Some helpful questions are answered here: https://www.etsy.com/shop/metalsupplychick/policy?ref=shopinfo_policies_leftnav I ship fast! Some are same day but most are next day. Two people are filling orders both during the day and after 4:00. If you need something sooner, please upgrade your shipping. If it is a letter set it usually goes priority anyway. Convo me if you need express or select it on some of the listings from the drop down menu. Convos? I try to get to them within 24 hours. I do value my customers and know I wouldn't be where I am without you! I try to also balance my family time too.