this thing i was reading from doctors sites its say like this
"best place to inject, is in the glutes (buttocks). Target it on the top right of the right buttock, or top left of the left buttock. The best type to use is a 21G 1-1/2″ needle. This type is excellent for the oil based steroids and can be used for water based steroids also, but a better needle to inject Winstrol would be around 23G 1-1/4″.Always inject water based fluids, nice and slowly or you will find the fluid could just shoot right out again, and all injections must be deep and direct, because if you inject the fluid under the skin it could abscess."
so i use 23g 1 1/4 with not water based but oil with sustanon it was very good wasnt hard to press
but i just need to know its not to short to get the muscle in butt
cause when i used the green 21g is longer thx