 Scuba equipment is relatively heavy, and some components (scuba cylinders and diving weights) are not economically transportable by air, and may be included in the cost of a dive.Regulators, wet-suits, masks and fins are more personal equipment, and may be brought by the diver or rented, so a fairly large stock and where applicable, range of sizes in necessary to be able to rent equipment to all customers at a given time.Cameras and dive computers are usually owned by the diver, though entry-level examples may be available for hire at some dive centres.