'The Original Speed Sprouting Lid' New Flower Design (8 Lids) Grow Sprouts in a Mason Jar Strainer lids that easily fit standard canning jars. Available in wide and regular mouth sizes. Rust resistant stainless steel and durable BPA free plastic and dishwasher safe (top rack). Each lid is hand tested to ensure a perfect fit. One piece construction for easy use and cleaning. Manufactured in Oregon USA Set of 8 lids with new flower design