Approximate Dimensions - 6 inches diameter and 0.86 inches thick,approximate Weight - 23 ounces（weight of two halves together） Material - High quality high temperature ceramics,glazed smooth.I do not recommend using the dishwasher. Fermentation weights wide mouth mason -The fermentation weight is composed of two semicircles,allowing for more coverage inside the jar. They fit below the neck of the jar so you must leave adequate headspace. Insert each half into the jar at an angle. Easy to use - This weight holds the vegetables down so the brine can rise to the surface for best results of fermentation.Making the whole fermentation process much easier for both beginners and enthusiasts. Exquisite design - exquisite appearance and bright color are excellent gifts for everyone who likes to ferment.Note - Handmade,each weight will be slightly different,and there are two small hole at the bottom of each fermentation weight,which is to prevent the ceramic from bursting during the firing process,which is a normal phenomenon. - Packing - 2pcs - Color - Available in 3 colors： Blue/Orange/Green - Size - 5.7 inches wide and 1.18 inches tall,approximate Weight - 27.5 ounces（weight of two halves together） - Material - High quality high temperature ceramics