Description The fermentation weight is made of premium glass material, durable for long time to use. Small size but with multiple functions, they can be used for various fermentation projects such as wine brewing, craft beer brewing, sauerkraut, cider, fruit wine, rice wine, carrot and ginger. Reasonable structure, easy to grip, save your efforts and bring you convenience. Features -Color:Transparent -Material:Glass -Size:7.00X7.00X3.00cm/2.75X2.75X1.18in - This fermenting lid is made of premium glass materials, durable and can be used for long time. - Great for sauerkraut, craft beer brewing, cider, fruit wine, and any vegetable and fruit fermentation, the fermentation lid fit your demands. - The flat bottom keeps fruits and vegetables under the brine, prevents air bubbles from forming underneath, more reliable and convenient than DIY ones. - Large and heavy enough to keep items under brine for better fermentation effect. - Transparent design, small size, easy to use, and this glass weight for fermenting is perfect for most kinds of mason jars. This fermenting lid is made of premium glass materials, durable and can be used for long time. Great for sauerkraut, craft beer brewing, cider, fruit wine, and any vegetable and fruit fermentation, the fermentation lid fit your demands. The flat bottom keeps fruits and vegetables under the brine, prevents air bubbles from forming underneath, more reliable and convenient than DIY ones. Large and heavy enough to keep items under brine for better fermentation effect. Transparent design, small size, easy to use, and this glass weight for fermenting is perfect for most kinds of mason jars.