Elevate your tumbler customization game with this precision-engineered 8-inch Vert-Align ruler bundle. Specifically designed for tumblers 20 oz and smaller, this innovative ruler is a must-have tool for DIY enthusiasts who demand accuracy in their creative projects. The ruler's self-aligning feature ensures perfectly straight vertical lines every time, taking the guesswork out of design placement. Whether you're adding vinyl designs, measurements, or decorative elements to your tumblers, this ruler helps achieve professional-looking results consistently. The thoughtfully designed tool makes alignment simple and repeatable, allowing you to create symmetrical designs with confidence. Perfect for crafters who want to enhance their tumbler decoration skills and streamline their creative process. This ruler bundle is an essential addition to any tumbler customization toolkit.