Size: The glass fermentation weights with ribbed handle measure 2.75 x 1.4 inches; each weighs 0.45 lbs and is suitable for multiple jar sizes, ensuring proper sealing and stability. Material: Made of premium glass, heat-resistant, and safe for direct placement in boiling water for cleaning. Multi-functional use: Designed specifically for home fermentation, ideal for fermenting vegetables, yogurt, fruits, and other foods. Easy to clean: Smooth surface allows for easy cleaning; dishwasher and hand wash safe, resistant to staining, and reusable. How to use: Place ingredients into a jar, add liquid, then insert the glass weight to keep ingredients submerged and prevent floating. Color: Clear Material: Glass Package Contents: 2 x Fermentation Weights Note: Light reflection and display differences may cause slight color variations between the image and the actual item. Measurement allowance is +/- 1-3 cm.