J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Mast black bands

From the J/30 Class Rules:

5.7.2 Measurement Bands of contrasting color, one inch in width, shall be affixed on the mast as indicated in the official mast drawing. The upper edge of the lower measurement band on the mast shall not be more than 2698 mm above the surface of the molded mast step.