Fans of the Mason jar can now keep its contents cold or hot longer. The Eco Insulator™ by Mason Monster is a patent-pending insulator designed to cover a Mason jar to regulate temperatures. It has a custom-fit design made of 3mm EcoLite Neoprene and is available in two sizes—pint and quart. The Eco Insulator™ has 20 different color combinations. The insulators are all reversible, providing two-color combinations in one product.
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