21g, 23g, 26g, 28g, 30g Disposable Blood Collection Needles and Adjustable Depth Blood Collection Needles, Specifically Designed for Diabetics, for Blood Sugar Testing, Suitable for Blood Collection, Cupping, Massage, and Other Medical Scenarios, and Are Compatible with Puncture Equipment, Designed Specifically for Diabetics, and Can Be Used to Collect Blood Samples.

Beauty & Health > Health Care