These blown glass pond floats are created without a hook or loop on the top. Instead the hole is capped with a little button of clear which weighs them down and makes the ball air tight so it will float. We make these much thicker than the other ornaments we produce, so they can easily withstand the elements. You can be confident they will be safe in your pond and will not crack while floating around rocks. These orbs are also great as decor pieces and can be grouped together in a shallow bowl.