■ This item is not subject to price negotiation. I will not respond to comments asking for a price reduction. ■ I am a diving novice and cannot answer specialized questions. Thank you for your understanding. Manufacturer: All three are TUSA ⚪︎ Regulator ⚪︎ Octopus ⚪︎ Gauge Number of uses: About 5 times Thank you for viewing. This is a set including a TUSA regulator, octopus, and pressure gauge. It has been stored in a cool, dark place away from direct sunlight. Since it has not been used for a long time, please purchase it with the assumption that it will need to be overhauled (OH). Also, there are minor scratches and signs of use on the exterior, but there are no breaks or major damage. ※ For safety, please be sure to have it inspected and serviced by a specialist before using it for actual diving. ※ There are no accessories such as instruction manuals, and everything in the product photos is included. It will be delivered as is, so please purchase only if you understand the condition. ※ Since this is a used item, please understand that no claims or returns are accepted after purchase. ※ If you would like to know more about the product, please see the following link: https://tusa.net/product/regulator/