Just like the floats or "orbs" we hide on the island, except these are signed and dated by their creator, Eben Horton. They're about 3" in diameter. Some slightly larger, some smaller. They have the Glass Float Project stamp on the top, with the island and glassfloatproject.com. Sold individually. If you'd like a special inscription written on the top, please order "Inscription" from the Glass Float Project page.