Size:The glass fermentation weights with ribbed handle,measure 2.75 x 1.4 inches, each weighs 0.45 lbs,suitable for multiple sizes of jars, ensuring sealing and stability Material: These fermentation weights are made of premium glass,high temperature , can be directly placed in boiling water for cleaning Multi functional use: jar fermentation glass weight is a tool specifically for home fermentation,suitable for the production of various fermented foods such as vegetable, yogurt, and fruit Easy to clean:The fermentation weights is smooth,dishwasher and hand washable,not prone to residual stains, and can be reused How to use: Put the ingredients to be fermented into a jar, add an appropriate amount of liquid, place a glass weight in the jar, and it on top of the ingredients to prevent it from floating up Color: Transparent Material: Glass Package Contents: 4 x Fermentation Weights Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.