Upgrade Non-slip and Easy Grips Handle They had a knob handle so you can easily fit exactly into wide-mouth mason jars, and are super easy to place & remove without taking up more of the valuable vertical space inside the jar. 7.4 oz weight works to hold the expanding ferment perfectly under the brine,When it is wet, it will not slip out of the hand alsoGlass weights with easy grip handle,Weight of each is 7 oz(200g)，easily press the kimchi under it,Size: 2-3/4'' in diameter and 1'' in height.Upgrade Non-slip and Easy Grips Handle They had a knob handle so you can easily fit exactly into wide-mouth mason jars, and are super easy to place & remove without taking up more of the valuable vertical space inside the jar. 7.4 oz weight works to hold the expanding ferment perfectly under the brine,When it is wet, it will not slip out of the hand alsoFermentation glass weights are made of food-safe glass which is lead free and non-porous. So, it will never absorb food odors, flavors, or colors.Perfect fit for wide mouth mason jars. And they are a lot heavier than a typical glass fermenting weight or pebble, which works to hold the expanding ferment perfectly under the brine.No matter it’s dry, wet, or halfway down in a jar. No more poking your fingers into the ferment or goofing around with a utensil.