Lovely multi-coloured flashing solar lights incorporated into a screw top mason jar lid. You need to hae your own jars for these but that isnt a problem in my house. These arrived charged up so I could test them out on arrival. I am going to enjoy using these for outdoor parties. They can be used indoors also as long as you remember to put them somewhere they will charge up during daylight hours. Anything that is colourful and sparkles is a winner in my book and these don't disappoint. They would also make great gift ideas, you could decorate/personalise a jar and place one of these on top or make fairy jars. These will be getting a lot of use. I am very pleased with my purchase.