This collection is limited because of the vintage Gill Net Cork floats that I use on the bottom. They are nearly 100 years old and came from old fishermen in Sointula. Thank you. Other components are driftwood, shells, rocks, sea glass.. I also string them on commercial seine twine so they are strong and won't degrade in the sun. The spacers I bend from aluminium wire so they won't rust either. Good for outside or inside.