This custom-made case is based on the Meiho FB-470/480. Its compact size makes it perfect for storing a variety of parts. Three types of inner cases are included, allowing you to customize them to suit your needs. The case is equipped with a silicone rubber gasket around the perimeter, making it waterproof, so the contents will stay dry even if it falls into water (depending on usage conditions). It is also possible to store items that cannot be damaged by water without the inner case. The highly airtight interior provides enough buoyancy to prevent the case from sinking, even when containing contents weighing approximately 150g (5.6oz).