PEPPERLONELY Brand 10PC Natural Round Shell Charm Pendants 50mm (2 Inch) Quantity: 10PC Size: 50mm (2 Inch) Hole size: 1.8mm. Thickness: 1.4mm - 2.9mm Material: shell These items are made by natural shells, so the surface may looks cratered and uneven dying. It is normal phenomenon rather than quality problem.