15 KG hexagonal dumbbell pinch grip lift and hold for around 10 seconds with the left hand.
Bashing, hitting my abs with my forearms 2019 part 12.
Right hand improvised finger training with a small clamp.
JK chest beating 2019 part 37.
JK (Jef Koelewijn) chest beating 2019 part 36.
MMA (mixed martial arts) ground and pound training Punches and hammer fists into the sand part 4.
JK (Jef Koelewijn) chest beating 2019 part 35.
MMA ground and pound training Two handed hammer fists into the sand part 3.
Old time strongman JK (Jef Koelewijn) bending a 5,5 x 140 mm nail for only one part.
MMA (Mixed Martial Arts) drop hammer fist into the sand.