THE SYSTEM CONSISTS OF 2 LEWMAR OCEAN RACING RATCHET BLOCKS (1 SINGLE AND 1 DOUBLE) AND APPROX 175 FEET OF 3/8 POLYESTER YACHT BRAID. YOU CAN CLIMB YOU MAST WITH 3 TO 1 PURCHASE WITH BOTH BLOCKS IN THE RATCHET POSITION. FOR DESCENDING YOU CAN SWITCH THE TOP BLOCK TO FREE FALL BEFORE LEAVING THE TOP OF THE MAST. IF YOU WANT OR CONDITIONS ARE RIGHT YOU CAN SWITCH THE LOWER BLOCK ON OR OFF OF RATCHET AS YOU DESCEND. ALL BALL BEARING BLOCK MAKES THIS SYSTEM WORK FLAWLESSLY. IT HAS BEEN USED VERY LITTLE AND IS IN EXCELLENT CONDITION.