In this day an age of all the high dosage gear, what do you do if you need a small dosage. I have Anabolic Nation Test Prop 250. When I'm on a Tren Ace/Test Prop cycle and I only need 25mgs of Test Prop 250 and 50mgs or 75mgs of Tren Ace 100, I can easily measure that out acurately with these 1 ml syringes. They have the threaded lock tips. I use the 20awg 1.5 inch to draw and the 23 awg 1 or 1.5 inch to inject. These pins were purchased from Eastcoast Medical.