Multiple Sizes Available​ - This tool is available in specifications suitable for bottle openings with inner diameters of 13mm, 15mm, 18mm, and 20mm. Before purchase, please ensure the inner diameter, outer diameter, and height of your bottle neck are compatible with the tool's specification. Aluminum Alloy Main Structure​ - The crimper body is constructed from aluminum alloy, intended to provide the necessary structural strength for operation while managing overall weight. Manual Mechanical Crimping​ - Operated by manually pressing the handles, using a lever mechanism to mechanically crimp and seal metal caps (e.g., spray heads) onto bottle necks. It is a manually operated tool. Fixed-Size Design​ - Each tool is designed for a single, fixed size and is not adjustable. The bottle neck and cap dimensions must exactly match the tool's specification​ to ensure effective sealing and prevent bottle damage. For Small-Batch Sealing​ - Can be used for small-batch sealing tasks on bottles of various sizes in contexts such as craft making, DIY perfume/essential oil decanting, and sample vial preparation., Manufacturer: LPAYBCFO