This is the well-known underwater notebook for communicating during dives! It works perfectly, and I've customized it with a carabiner, coil, and buckle belt for ease of use! The bell stick, which is attached with a retractor, is also easy to use. You can shake it to make the bell ring when you want to get someone's attention, or use it to point out dangerous objects! Shipping will be via the safe and secure Rakuraku Mercari service! Please understand that the packaging will be a simple one, with the item placed in a bag and wrapped in bubble wrap. ^^;