Hi Mary, I have a red one and this blue one they are made of nylon cloth, im hopeing the battery lasts a long time it says rechargeable AAA BATTERY INCLUDED but Alex said it is all incased and until it goes he wouldnt try getting it out.

I was told all solar lights have batteries or cells that the sun charges.

Hopefully they will work a long time but if not they are pretty hanging in the day time.

Carol