Tony Parx`s Ultimate Knife Thru ArmTony Parx`s Ultimate Knife Thru Arm. You show a fierce looking knife and proceed to slice into your arm. Blood oozes from the wound but when you remove the knife you wipe it away to show and unharmed arm. This can also be done on a spectators arm. Please do not confuse with cheaper knife`s on the market. Tony Parx`s Ultimate Knife Thru Arm is the best designed and made knife through arm Magicbox have found at a sensible price. Which is made locally in