Premium 15ml/30ml square glass cosmetic bottles with gold/silver aluminum droppers and rubber lids. Medical-grade borosilicate glass ensures chemical resistance and durability. Precision-molded droppers feature leak-proof seals for accurate liquid dispensing. Gold/silver electroplated aluminum collars add luxury aesthetics. Thickened rubber lids maintain airtight freshness for essential oils and serums. Ideal for DIY skincare, aromatherapy blends, and professional cosmetic packaging. Clear transparency allows easy content visibility with minimalist elegance. Bulk wholesale pricing available for commercial manufacturers and beauty brands.