17 centimeters is the full length, and that 3ml capasity covers about 30 doses at the lower range—most buyers go with the 10mg in liraglutide equivalents.
problem is patients skipping doses because they can't get the timing right or hate the hassle, so this gives you a mechanicla push button that delivers in 6 seconds flat with both a click and a visible marker when it's done.
You dial from 0.01ml up to 0.6ml per shot, and the 31G or 32G needle means we've handled feedback from users who say it's better than reagent grade for subcutaneous injections—less stinging, anyway.
It's basically a disposable auto-injector, no batteries needed, and the cartridge inner diameter is φ9.7mm so it fits standerd 3ml cartridges form most suppilers (usually 2-4 weeks lead time on those).
We usually have stock on the grey and blue color options, but confirm lead time if you need a different hue—it's not suited for anything thicker than water-like solutions, so don't try it with suspensions.
One detail a buyer might not think to ask: the mechanical feedback is loud enough to hear across a quiet room, so some clinics prefer the quieter grey version for patient comfort.