This JCD chock is machined with precision from a solid block of HDPE. The max range forward step block is similar to our regular one, but has 7 steps instead of 5. The max ﾑgear' range is 1-1/2 in, 1-3/4 in, 2 in, 2-1/4 in, 2-1/2 in, 2-3/4 in, and 3 in. At 3 in, the mast will be all the way back to the partner for the heavy air set-up.
The last 4 steps have the exclusive 8-degree angle design. The angled step matches the mast angle as you rake aft, allowing the step to seat more securely to the partner lip.
The back side is contoured to fir the front of the mast, and the top has 4 holes for extra bungee cords.
Height is 7-3/8 in, width is 3 in, and the weight is 24 oz.