Premium thick-walled press button transparent dropper bottle for precise serum dispensing. Crafted from high-clarity borosilicate glass with reinforced walls for durability and chemical resistance. Features a precision-engineered press-button cap with airtight silicone seal to prevent oxidation. Graduated markings ensure accurate 30ml measurement for professional formulations. Ideal for skincare serums, essential oils, CBD extracts and cosmetic liquids. Industrial-grade threading withstands repeated use in clinical or production environments. Ultra-fine dropper tip allows controlled droplet application. Sterilizable for pharmaceutical-grade applications. Bulk packaging available for commercial manufacturers and private label brands.