Concord Stainless Steel Canning Rack, 1-unit, brand new never used. Used for holding jars off the bottom of a pot during the canning process. Material: Food-grade, rust-resistant stainless steel. Function: Elevates jars to ensure even heat circulation and prevents cracking due to direct heat from the bottom of the pot. Versatility: Can also be used as a cooling rack, trivet, or steaming rack in a pressure cooker. Design: Features a sturdy wire construction for durability.