The Waterwalker 132, 126, and 120 all share the same core design and construction, but in different sizes to best suit paddlers of different heights and weights. The 132 is the largest and is great for average-to-heavier paddlers up to 230lb. The 126 is slightly shorter and narrower and is better for average-to-smaller paddlers up to 160lb. The 120 is the smallest in length and width and is best for petite adults and kids up to 130lb.