Jumbo Float Kit for StiX Arms. 4 Floats (4) Jumbo Floats for StiX System Arms offers a total of 24 ounces (680 grams) of buoyancy with a travel weight of 4.2 ounces (120 grams) Each float 2.63 inch (66 mm) semi-square by 2 inches (57 mm) thick. This is our larges standard float. Made from our nearly indestructible foam. We place the arm position 3/4" from the side to allow complete folding with standard clamps.