This is a handmade item crafted by a diver. It was custom-made and purchased at a high price. It can be used for a diving log, planner, etc. I no longer dive, so I'd like to pass it on to someone who will cherish it. It's 100% handmade and made of genuine leather. There is no deterioration or odor. The button is made from a watch core and arranged in a cool pattern, with a cute whale accent. I want to emphasize again, I apologize to businesses and resellers, but please refrain from purchasing. I want to give it to someone who truly loves it and will take good care of it. The above content was entered manually, not by AI. Thank you for reading this far.