This glass sealed jar is perfect for natural yeast fermentation. It comes with cloth lid, a jar, a temperature paper, elastic band, and a silicone . The jar is made of glass, which is moisture-proof and keeps the contents fresh. The caviar jar is multi-purpose and the temperature paper helps you monitor the fermentation temperature accurately. Features -Color:Assorted Color -Material:Glass, silicone and paper -Size:17.50X8.00X8.00cm/6.88X3.14X3.14in -The glass sealed jar natural yeast fermentation vessel is a must-have for those who are looking for healthy and additive-free food options. -This fermentation jar is designed to cultivate natural yeast, which is essential for making bread, and other fermented foods. -The glass jar is sealed with a cloth cap and black silicone spatula, ensuring that the fermentation process is free from contamination. -The jar also comes with an elastic band and a temperature paper, allowing you to monitor the fermentation process and that the temperature is optimal for the yeast to grow. -With this fermentation vessel, you can enjoy the benefits of natural yeast fermentation and create healthy foods without any harmful additives. Package list: 1 x sourdough jar 1 x cloth hat 1 x black silicone spatula 1 x elastic band 1 x temperature paper