Convert a standard Mason jar into a stylish storage jar with these naturally antimicrobial bamboo mason jar lids with removable silicone seals. No fiddling with two-part canning lids! <br><br>Small fits a regular mouth Mason jar, 2 3⁄8" inner and 2 3⁄4" outer diameter. Wide fits wide-size Mason jars: 3 in (76 mm) inner and 3 3⁄8 in (86 mm) outer diameter.