The photos indicate the injection location for the outer (horseshoe) tricep head.
The photos indicate the injection location for the middle rear tricep head.
The photo indicates the injection location for the lower rear tricep head.
Instructions:
Inject directly into the middle of each tricep muscle head.
25gauge to 30gauge half inch (13mm) to 1 inch (25mm) long needles are adequate.
To discuss these injection locations, visit:
www.professionalmuscle.com