stoppers are made of Glass, Silicone material, which are and not easy to deform or break. They are suitable for wine bottles, , cocktail bottles, etc., with simple structure and easy cleaning. Easy and convenient to use and clean it. They have a wide range of applications and can be used as stoppers in homes, bars, clubs, parties, etc. Features -Color:Transparent -Material:Glass, Silicone -Size:3.30X3.30X2.90cm/1.30X1.30X1.14in -Note:Suitable for 18.5mm size . -Reliable material: the is made of Glass, Silicone with good flexibility, safe, sturdy to longtime use. -This can seal the well to prolong the storage time of the liquid inside and - Safe, , practical, the is no easy to break and deform, excellent and good sealing effect. - The is reasonable and suitable for most bottles, bottles and glass bottles. - The is also great and good decoration for your , showing your taste, bring beauty. Package list: 10 x stoppers