This glass carafe kit is made of aluminum and silicone materials, safe, and practical, has a long life, and . Excellent craftsmanship and scientific design make it have the characteristics of good sealing, corrosion resistance and environmental protection, which can effectively help you maintain the stability of the liquid in the bottle and prevent the entry of impurities. It will be your choice for experimental storage accessories. Features -Color:Multi -Material: Aluminum, Silicone. -Size: 2.20X2.20X1.00cm/0.86X0.86X0.39in -Made of aluminum and mild silicone, it is safe and practical, and . -The sealing effect is good, which transportation and movement easier and easier. -The carefully made bottle has good corrosion resistance and durability, and can serve you very well. -This bottle is very practical, can effectively prevent impurities from entering, and keep the liquid in the bottle stable -Easy to use, stable installation and will not fall off easily. Package list: 240 x bottle caps