Hook and back-up technique, resting working thumb on palm of other hand, placing fingers on top, bending thumb's first joint, resting on edge of thumb, pulling back with thumb to exert pressure. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / DK IMAGES |
Bildgröße: | 4242 px × 3414 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |