Description If you are looking for professional and reasonably priced glass bottle caps, then this duty glass will be your good choice. It is made with excellent technology, reasonable design, good airtightness, and can help store liquid well. Prevent impurities from entering the bottle, so that the substance can remain stable for a long time. It is a very practical storage tool accessory. Features -Color:Random Color-Material:Aluminum, Silicone.-Size: About2.00X2.00X1.00cm/0.79X0.79X0.39inch.-It is made of aluminum and silicone materials, safe and durable, with excellent texture.-The excellent production process makes it have good sealing performance, which can help you better store the experimental liquid.-This professional and practical bottle has the characteristics of environmental protection, corrosion resistance and not easy to fall off, and can serve you well.-With simple application methods and practical functions, it can bring you convenience.-This product contains enough quantity to meet your needs.Packing list: 240 x bottle caps