750ml Tapered French Glass Preserving Jar WAirtight Rubber Seal. Stainless steel wire clamp, airtight natural rubber seals, straight body. Perfect for: preserving/canning, countertop, pickling, ground coffee. This package contains Le Parfait glass preserving jars with NEW Stainless Steel wire, presented within environmentally friendly, compostable cushioning. Le Parfait has been dedicated to preserving your healthy lifestyle needs - and the world around us - since 1930. Utilize these brand new, versatile Le Parfait glass jars to preserve your seasonal harvest, revitalize your pantry storage and bulk-goods shopping, serve up a decadent homemade spread, or craft the perfect gifts for your loved ones.