RYOT Black Glass Storage Jar with Silicone Seal and Walnut Tray Lid. Each jar holds about 1/2 oz. Concerned about your health? RYOT’s versatile Glass jar is BPA-free and contains a silicone seal. No matter what strain you are storing, the RYOT Glass jar will keep its contents fresh and pure. Pairs well with the RYOT LOCK-R Box, the Safe Case.