Mineral Display Case-3D Floating Capsule – For those collectibles that don’t quite fit or lay flat (such as rings, rocks, antique buttons, thimbles, etc). Enclose your treasure between two silicone membranes and it becomes immovable and floats inside this capsule. External size: 2″ x 2″ x 1″ high. Also fits in our Designer Chest Drawer #5905-3. Package of 3 capsules.