Do you have any sports or body weight based exercises to improve forearm strength ?
To explain a bit my requirements, I'm travelling a lot and I do not always have the opportunity to access weights or other materials. I want to be able to perform those exercices regularly without too much equipment.
The purpose is globally to balance the size of my biceps / forearms. I have naturally small wrist (and I know I can't really do anything one this point) and forearms. I'm boxing 5 hours per week and I feel some weakness in my forearms during the sessions.