20pcs Clear Vials Durable 10ml Headspace Vials Glass Bottles for Cosmetic Science If you are looking for a professional and affordable glass vial set, then your research is over. This product meets your needs. Made from premium glass material, these vials are high-pressure resistant, hygienic, and safe. They offer a good sealing effect and are convenient to transport. Ideal for storing mixtures, essential oils, and other samples. Features - Color: Transparent - Material: Glass - Size: Approximately 5.00 x 2.20 x 2.20 cm / 1.97 x 0.86 x 0.86 inches - Made from premium material, high-pressure resistant, hygienic, and safe - Clear body with thickened flat bottom for stable placement on surfaces - Includes caps for effective sealing and easy transport - Smooth bottleneck allows for easy refilling without hand irritation - Suitable for storing mixtures, essential oils, and various samples Packing List: 20 x empty bottles