100% durable and rust-resisting BPA free.Perfect for making organic sprout seeds in your house or kitchen and great for a Healthy Gift! You can grow a variety of sprouts and keep a constant supply on hand.Try organic broccoli sprouts,lentil spouts,bean sprouts and other favorites. A perfect size fairly fine-mesh screen allows easy draining and empty the water from the mason jars but no loss of seeds.This fantastic jar sprouting kit keeps the moisture but at the same time open to the oxygen they need,making sprouting so much more simple!It can be boiled and sterilized and fully dishwasher safe. Grow your own organic broccoli sprouts,lentil spouts,bean sprouts and fine enough to use for even tiny sprout seeds including alfalfa with these seed sprouting lids.It is also perfect for straining liquids such as teas,juices,broths or for powders such as coco and powdered sugar as well.You can also plant by removing the iron mesh. The diameter of the lids:it fits most wide mouth jars sides. Color:silver Material:Stainless steel Size:about 8.5cm in diameter Package Contents: 1 set * 8 packs(round split net cover seed germination cover sprouting tank filter cover breathable mesh) Only the above package content, other products are not included. Note: Light shooting 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.