Argon Tableware Preserving / Jam Glass Storage Jars - 200ml - Pack of 3 Silicone seal (not rubber) ensuring heat and freezer resistance Airtight seal, silicone lasts longer than the traditional rubber Stainless steel wirework ensuring no corrosion. Part of the stunning Argon Tableware range Dimensions: Height - 8.5cm diameter - 7.5cm