18mm Standard Dropper Cap

This dropper cap covers three mainstream thread models: 400, 410 and 415, meeting different international bottle matching standards. It can be seamlessly installed on corresponding standard essential oil bottles and Boston round bottles for flexible packaging matching.

Two premium surface treatments including electroplating and anodized aluminum are available for selection. They upgrade product grade significantly, catering to mid-to-high-end cosmetic branding and differentiated packaging positioning demands.

It offers full stripe and interval stripe outer texture choices. The anti-slip stripes improve twisting friction for easier opening and closing, while enriching appearance choices to satisfy personalized aesthetic requirements for brand packaging.

Structurally optimized to perfectly fit essential oil bottles and Boston round bottles. With good internal sealing performance, it effectively reduces liquid volatilization and avoids leakage during storage and transportation.