The Opticron Folding Metal Loupe Magnifier 15x 23mm is a compact and durable tool ideal for close-up inspection of plants and insects, as well as reading small print on documents. It features 15x magnification and a 23mm (0.9 inch) diameter glass lens, offering clear and detailed viewing. The metal frame and chrome plated housing ensure a robust, long-lasting design, making it a practical choice for both field and everyday use.