Keep your Mason jars safe with these Double Insulated Silicone Sleeves. Perfect for protecting 4oz Mason jars from spills and temperature changes, ensuring they stay safe for use in the kitchen, dining, and on the go.
  These Silicone Sleeves are ideal for various small containers, such as baby bottles, toddlers' cups, espresso cups, and shot glasses. Made from BPA-free, food-grade silicone, they add an extra layer of safety and durability.