Multiple Sizes Available​ - This product is available in specifications suitable for bottle openings with inner diameters of 13mm, 15mm, 18mm, and 20mm. Please select the size corresponding to your bottle's inner diameter when purchasing. Aluminum Alloy Main Structure​ - The tool frame and handles are constructed from aluminum alloy, intended to provide the necessary structural strength for operation while managing overall weight. Manual Mechanical Crimping​ - Operates by manually pressing the handles, using a lever mechanism to mechanically crimp and seal metal caps (e.g., spray heads) onto bottle necks, requiring no electrical power. Fixed-Size Design​ - Each tool is designed for a single, fixed size and is not adjustable. Effective sealing requires that the bottle neck and cap dimensions exactly match the tool's specification. 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 laboratory sample vial preparation., Manufacturer: LPAYBCFO