304 stainless steel, stainless steel primary color
Based on the principle of safety, soberness and non coercion, it is recommended to apply baby skin care oil, lubricant or similar products before use.
Expander part: the large diameter is 9mm,
Catheter part: the length is about 105mm, the diameter of the thick part is about 10mm, and the hole diameter is about 4mm
There are three sizes of snap ring inner diameter: About 40mm / 45mm / 50mm, which can be selected to suit your own size