【Set Contents】 ① Regulator: Aqualung Mikron ② Octopus: TUSA ③ Pressure Gauge: TUSA ④ Medium Pressure Hose This set can be used as is. The Mikron regulator is an older model, so it is being sold at a bargain price. The Mikron was developed for women, and the second stage (in the second photo) is made smaller. Many women find the second stage heavy in the water because they have weaker jaw strength. The Mikron was developed to address this, and it is a long-selling popular product. The hose is a mesh hose, so it is soft, and it is safer because the regulator is less likely to pull and come out of your mouth when you move your neck. As shown in the photo, it is still in the box, so I will assemble it before sending it to you. I have been assembling and selling regulators for over 20 years, so please rest assured. The pressure gauge is a single pressure gauge without a compass, but it can be changed to one with a compass, so please consult in the comments. * It will be an additional 6600 yen. I will dispose of the outer box, but if you want it, please consult. Mikron AQUALUNG