Ideal for professional jewelers, artist, jewelry craft enthusiasts, and online jewelry sellers needs professional bead size gauge measuring tool for craft beads, rings, earrings, and accessories The light weight acrylic features surfaces and millimeter / rings size scales, ensuring long term durability and accuracy for jewelry sizing, bracelets making projects, and craft applications Crafted from high transparency acrylic, this jewelry sizing gauge clearly visibility of precisely 2mm-18mm measurement markings, making it essential jewelry measurement tool for jewelers and jewelry shoppers Its clear color design doubles as jewelry size gauge ruler– keep your workplace organised while showcasing this acrylic measurement tool as modern studio accent Use it at jewelry workbenches to validate stone sizes, in photography studios for product listings, or during craft project for consistent bead spacing in bracelets and necklaces