Features: High-quality material made of corrosion-resistant glass, thick, smooth, and shock-resistant for durable use Bottle size: Approximately 15mm (0.59in) in diameter, 1ml bottle measures 38mm (1.49in) in height, 2ml bottle measures 45mm (1.77in) in height Color: Available in three glass color options: dark brown, transparent, and blue Applications: Suitable for essential oils, fragrances, cosmetic packaging, aromatherapy oils, liquid storage, serums, samples, display, laboratory testing, and other similar uses The glass dropper bottles are compact and convenient for travel Package includes: 15 pieces of essential oil dropper bottles (1ml/2ml, dark brown/transparent/blue) Specifications: Material: Glass Color: Dark Brown / Transparent / Blue Size (Approx.): 1ml - 15x38mm / 0.59x1.49in; 2ml - 15x45mm / 0.59x1.77in Weight (Approx.): 1ml - 100g; 2ml - 109g Note: 1. Please allow 0-1cm error due to manual measurement. Ensure you are comfortable with this before purchasing. 2. Due to differences in monitor displays, the actual color may vary slightly from the image shown.