MAGIC MATCH BOX

IF YOU HAVE A SPARE MATCH BOX,MAKE THIS ?EASY TO DO COST NOTHING AND WILL AMAZE KIDS AND ADULTS OF ALL AGES.? SIMILAR TO THE CUBE PUZZLE. YOU NEED A MATCH BOX–A PIECE OF STRING– 2  WASHERS– A PIECE OF STRING ABOUT 3 FT?  CLOSE MATCH BOX AND DRILL HOLE EACH END? 4 MM HOLE.  FEED STRING THROUGH-? ATTACH WASHER EACH END OF STRING-?  OPEN BOX AND FIT CARDBOARD STRIP INSIDE?AS SHOWN IN PHOTO? CLOSE BOX? HOLD WASHERS EACH END ?HOLD LOSE AND BOX WILL FALL HOLD TIGHT AND YOU CAN MAKE BOX STOP WHERE EVER YOU WANT TO ON THE STRING? SELF EXPLANTORY. HAVE FUN?!!!  EASY WHEN YOU KNOW HOW??