This is 3d printed, laser cut, and hand assembled art. You can wear it, hang it off your Christmas tree, or just put it in a place that could use a lil extra glow. LED turns on with the twist of the top and batteries keep LED bright for around 6 hours, then LED dims, but will stay Lit for around 8-16 hours total. Each pendant comes with an extra set of LR41 batteries to ensure you don’t stop shining anytime soon :) a chain is also included so that you can wear your Aglow Geo right away.