(12 Count Freezer Safe 16 oz Ball Wide Mouth Pint Jars BPA-free) Over 100 years of research, testing and advancing the art of fresh preservation go into Ball Wide-Mouth Pint Jars. Use them for waterbath canning and pressure canning with ease and efficiency. Five size options are available so you can choose the jar that fits your needs. Some jars have shoulders while others have straight sides that work best for freezing. Your recipe will guide you on the recommended jar sizes. These canning pint jars are measured by the diameter of the jar opening. Choose from either regular or wide-mouth sizes. All jelly jars have a regular mouth, which works best with pourable foods such as jams and jellies, salsas, sauces and pie fillings or chopped fruits and vegetables. Wide mouth works best with whole fruits and vegetables or when you need a large mouth for filling. Be sure to enjoy your preserved foods within a year. Use this 12-pack of Ball Wide-Mouth Pint Jars to pack up your foods and give them away to friends and family. (Foodsaver Wide Mouth Jar Sealer BPA-Free) The FoodSaver Wide-Mouth Jar Sealer fits on your own Ball and Kerr Mason jars and works with FoodSaver vacuum sealer systems to keep goods fresh longer. It is ideal for liquids, fragile foods and dry goods like brown sugar, spices, dried fruit and coconut. The mason jar sealers replace standard Mason-type jar lids to create a vacuum seal that locks out air - the enemy of freshness. It is not to be used for canning. It is simple to use by connecting one end of the jar sealer to the machine's accessory port and the white, round-shaped end to the top of a lidded Mason jar, so that it fits securely over the screwed-on lid. It works well for safely storing strawberry and blackberry jams, chocolate sauces, hot mustard, and other liquids and fragile foods. Re-seal those handy food-storage jars again and again using this FoodSaver Wide-Mouth Jar Sealer.