Product: 4oz Silicone Sleeves/Jackets for Protecting Small Ball, Kerr, Quilted Canning Jars by Mason Jar Lifestyle (Bright Blue, 2 Pack)
Brand: Mason Jar Lifestyle
Color: Bright Blue
This size does not have a hole in the bottom, so you can also use it without a glass jar inside.We designed the sleeve to fit tight enough that it won't fall off, but loose enough that it is still easy to get on and off. Different brands of jars will vary a little in size, but it should stretch to fit almost any of them. Use a different color for each family member, and stop wondering which jar is yours!  Microwave safe means you can heat up your beverage without removing the sleeve. Or take out a frozen jar of food, put a sleeve on it, and heat it up. Since they don’t touch your beverage, I often just rinse them, but they are also dishwasher safe. You can leave them on the jar, but I find that water gets trapped so I prefer to separate them to clean the jar. You could also use one to block sunlight or prying eyes from the contents of your jar. Great for kids and adults!
2 Pack - Fits *4oz* Mason Jars (The Tiny Ones) - Check the pictures if you aren't sure what size jar you have. 4oz Mason jars look like a small bowl and are 2 3/8" internal diameter. Use them for baby food, baby bottles, toddler drinking cups, shot or shooter glasses, espresso cups, condiment cups, snacks, dressing, dips, stash jars, or anything else.
Prevent Breakage - Twice as thick as competing brands, for much better insulation and drop protection.
Protect Your Hand From Hot and Cold - Perfect for heating up food or beverages in the microwave.
Multi Purpose - Kid drinks, espresso, and food are all tastier from a Mason jar. Add a leak proof lid and bring food to work or school.
Food Grade Silicone Rubber - Dishwasher, freezer, and microwave safe. Silicone is a safe, BPA-free material for food use that does not leach any chemicals.

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