Multiple Uses: this bottle seal opener can be applied for vials with diameters ranging from 10 to 20 mm; Both its head and bottom can be applied to open vials; The head can be applied for large diameter vials and the bottom can be applied for small diameter vials | Reliable and Sturdy Material: our vial cap openers are made of quality stainless steel, sturdy, polished with smooth surfaces, not prone to rusting, providing you with a lengthy service | Portable Size: this multifunctional bottle opener is small and lightweight, you can take it with you with your oral liquid bottle and use it anytime, anywhere | Sophisticated Design: this small flip top remover is easy to use, time saving and labor saving design mainly for those small bottle mouths that are difficult to open with other tools | Detailed Dimension Information: each bottle opener is about 11 cm/ 4.33 inches in length; It is compact and takes up little storage space, easier for you to hold during operation, and small enough to carry around or stow in a bag or drawer