Single Arm Dumbbell Skull Crusher - OPEX Exercise Library

Start the Single Arm Dumbbell Skull Crusher lying on your back with a dumbbell in one hand held straight up. Then slowly lower the dumbbell to behind your and then engage your tricep and pull the dumbbell back to extension.

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FINALLY! I FOUND IT, ALL THE OTHER RESULTS ARE TWO ARM SKULL CRUSHER. THANK YOU❤❤❤❤