[Material] high-quality stainless steel， medical plastic tube Seiko never rust kind more beautiful than the picture 

[Size] ring diameter 25mm and 30mm ring each one 

[Weight] Approximately 70 g 

Please do not worry place with stainless steel hose connections will fall off， because after installation， pull， even if the hose is disconnected， it will not fall off. 

Note: Product size due to measurement methods， measuring instruments， and so there will be a little different error， usually ± 2 mm of error is normal， not a quality problem， or does not match the description. 

Our products and distinguishes it from other inferior goods (after into saline)