Cliff Keen Red and Green Wrestling Referee Wrist Bands. Make the right calls with these referee wristbands from Cliff Keen®. Featuring one green stretch terry wristband for your right hand and one red wristband for your left. This set will have you ready to officiate your next dual meet. The Cliff Keen® Red and Green Wrestling Wristbands are washable and won’t shrink or stretch out of shape.