316 stainless steel sprouting lids, inner diameter: 2 4/5 in (72 mm), Outer diameter 3 3/8 in (86 mm), perfect for wide mouth Mason jars. A perfect size mesh screen allows easy draining and empty the water from the Mason jars but no loss of seeds. This excellent jar sprouting kit keeps the ventilation and supply the oxygen they need, making germination easier!

Rings are not included. Seeds Sprouting Lids are made of 100% food grade 316 stainless steel, Dishwasher safe. perfect for making organic sprouts in your home or kitchen and supply fresh sprouting constantly. (Jars, rings, and seeds not included)