High quality glass made : 15x45mm, made from clear Type 1 Class B borosilicate glass
Black Polypropylene caps: All vials come with screw-on black Polypropylene caps & PTFE Silicone liner attached. The cap finish : clear glass 13-425 thread .
Easy to Carry: Perfect for travel, and conveniently fits in your purse. With screw cap, Good sealing, avoid leaking.
PTFE Lined Silicone Septa: For Highly sensitive samples, PTFE layer is good at chemically resistant
Application: Lightweight and compact, perfect for travel refillable bottles for essential oils, aromatherapy products or any liquids great for storing or blending oils can also be used to store chemistry or lab chemicals lightweight and compact for easy travel great for professional or personal use