The Ear and Eye Drills are a pair of earplugs and eye tubes with tiny drills inside used by Tonegawa to drill through Kaiji's ear drum (or eyeball) whenever he loses a turn to him in E-Card.

Due to the lack of funds for Kaiji to make a bet, he was given the option to equip one of these to bet his eye or his ear to compensate.

The drills are equipped by the participant and controlled by a remote control and programmed to drill through the organ when the drills are extended 3 centimeters. Therefore, Kaiji has to bet 1 centimeter with 3 centimeters to spare to play E-Card.



  • Kaiji does not choose to equip the eye drill in his gamble with Tonegawa however production art of it being equipped by Kaiji exists.
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