Solar Mason jar lights arrived in perfect condition as they were well packaged. Jar lid is made of plastic but that is a good thing. I have had metal ones rust quickly. The lids will also fit standard mouth Mason jar if you like. The only problem out of the box was the nasty old oil smell on the jars. That was easy fixed with some soap and water. The lights are nice and bright. The lids have keep water out even with all the rainfall we have had. Update 9-21-18 Some of the jars have started filling with rain water. Lights still work but this will lead to rusting in battery comportment eventually. Jars have also started to loose brightness at very different rates regardless of water issue or location.