EASY GRIP DESIGN: Features an ergonomic handle that allows for simple insertion and removal from mason jars during fermentation process VERSATILE USE: Perfect for keeping vegetables submerged during fermentation in standard mason jars and fermentation crocks PREMIUM MATERIAL: Constructed from lead-free glass that's safe for food contact and maintains the purity of fermented foods MAINTENANCE: Fully washable glass weight that's easy to clean and maintain between fermentation batches DURABLE CONSTRUCTION: Solid glass construction ensures long-lasting performance and stability during the fermentation process Specifications: Material: Crafted from food-safe lead-free glass?non-porous and odor-resistant, ensuring no unwanted flavor transfer. Clarity: Boasts high transparency, letting you monitor the fermentation process in real time. Safety: Fully dishwasher-safe for easy cleaning, and BPA-free for total peace of mind. Diameter: 7cm / 2.76", perfectly fitting standard wide-mouth Mason jars. Height: 2.9cm / 1.14", designed for stable placement in jars. Weight: 200g / 7.05oz per weight, providing optimal submersion to keep ingredients fully immersed during fermentation.