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V-Ring™ V4 Medium Compatible with
McKesson 3ml (V-Size: V4M)
We measured the McKesson-3ml syringe and matched it to the precision-made V-Ring™ V4 Medium for guaranteed compatibility.
The V-Ring™ V4 Medium is compatible with the McKesson-3ml syringe and is also compatible with the following brands:
The V-Ring™ V4 Medium supports controlled, one-handed aspiration and injection in clinical settings that demand consistency and safety. It’s the only attachable syringe ring in its class that’s made from surgical-grade stainless steel, and built for sterilization and lasting performance in clinical settings.
The V-Ring™ V4 Medium is used and endorsed by injector trainers, certification faculty, and professional educators across the United States.
Yes. The V-Ring™ is a reusable syringe accessory intended for professional use.
The V-Ring™ is made from sterilizable stainless steel. Other products in this category are often non-sterilizable or disposable accessories.
Yes. It is machined from stainless steel and built for repeated sterilization and daily clinical use.
Educators prefer the V-Ring™ because it standardizes aspiration and injection technique and reinforces consistency across training cohorts.
Yes. The reversible design accommodates both small and large hands, see more below about our patented one loop, two grip design.
Surgical-Grade Steel
Antimicrobial Surface
Sterilizable & Autoclavable
Reusable — No Consumables
Lifetime Warranty
One loop, two grip styles — designed for all hands, left or right. Flip your Syringe V-Ring™ to find your perfect fit in seconds.
Tighter grip. Better control. Great for smaller hands and precise technique.
More room. Softer feel. Best for larger hands or relaxed, open grip.
Flip it how you like it — either way, your Syringe V-Ring™ is ready for one-handed control and aspiration.

V-Ring™ V4 Medium Compatible with
McKesson 3ml (V-Size: V4M)
We measured the McKesson-3ml syringe and matched it to the precision-made V-Ring™ V4 Medium for guaranteed compatibility.
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