The jars are good for this price, everything works perfectly. I don't know how long they will last, time will tell. But still, I would recommend getting these jars where they are packaged securely in a box. These came in a plastic bag, dangling around in it all the way, could have been broken and crushed because they are plastic. I didn't know they would be packaged like that, it's better to pay a little more but have them in a box.