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We only have size6 size7 size8 size9 for finger size, titanium steel jewelry will not change color. Titanium steel is a special steel with good corrosion resistance, bright appearance and harmless to human body. It has the same luster and texture as titanium, so it is good in quality and inexpensive. The benefits of wearing titanium steel: 1. It is the effect on the nervous system. It can enhance cerebral cortex function and mental activity, invigorate the spirit, improve work efficiency, and improve sleep quality. Negative ions can also strengthen the oxidation process of brain tissue, so that the brain tissue can get more oxygen. 2. The impact on the cardiovascular system. According to the observation of scholars, negative ions can significantly expand blood vessels, relieve arterial vasospasm, and achieve the purpose of lowering blood pressure. Negative ions also have a good effect on improving heart function and improving myocardial nutrition, and are beneficial to patients with hypertension and cardiovascular and cerebrovascular diseases. recover. 3. The impact on the blood system. Studies have confirmed that negative ions can slow down blood coagulation, prolong blood coagulation time, increase the oxygen content in the blood, and promote the transport, absorption and utilization of blood oxygen. 4. Negative ions have the most obvious impact on the respiratory system. This is because negative ions enter the human body through the respiratory tract and can increase human lung capacity. It has been tested that inhaling negative air ions in a glass mask for 30 minutes can increase the amount of oxygen absorbed by the lungs by 2% and the amount of carbon dioxide emitted can increase by 14.5%, so negative ions can improve and increase lung function. Is there a difference between stainless steel and titanium steel? 1. Different wear resistance. Titanium steel is not as wear-resistant as stainless steel. Titanium is not as wear-resistant as stainless steel without surface treatment. 2. The chemical properties of titanium are more stable and it is not easy to rust. Stainless steel is more prone to rust than titanium steel. 3. Titanium is a very special metal, very light in texture, but also very tough and corrosion resistant. It will not turn black like silver, and will maintain its color for life at room temperature. Dear, you can contact customer service if you have any questions. We are at your service at any time, and we will do our best to solve it for you. I hope you have a good shopping and happy every day