Medium. The Jar Sets are basic, clear glass hermetic sealing food storage containers with rose gold metallic clips and a BPA-free silicone gasket to keep food safe longer. Made with smooth molded glass. Size:4.25" x 3.5" x 3.75" (10.8 cm x 8.9 cm x 9.6 cm) with a capacity of 8 fluid ounces (236 ml).