Bean Sprouting Lids - Includes 2 Reusable Bean Screens for Mason Jars in Blue and Green • Features an inverted spout for Splash-Free Rinsing and Optimal Airflow, Feceted Sides to Prevent Jars from Rolling, and Pegs for Optimal Drainage • Dishwasher Safe, BPA-Free and Phthalate-Free Plastic • Designed for Wide Mouth Mason/Canning Jars (Ball, Bernardin, Kerr, etc.) Lid Dimensions: 3.6” (D) x 1.1”(H) Dishwasher friendly. Please wash before each use and between uses. Mason jars come in a variety of shapes, sizes, and volumes - but the mouth of every Mason jar (the part that the lid screws on to) is either:Wide Mouth: Outer mouth diameter of 3.38" or 8.6cm; orRegular Mouth: Outer mouth diameter of 2.75" or 7cm.Most Masontops products come in both sizes, but some are only available in either Wide or Regular.