... the stainless steel 304 2.3.50-4 penumatic wheel 3.weight 4.8kgs/pair. Boat Launching Wheels1. ... weight 4.8kgs/pair..1.About stainless steel launching wheel for boat:1)stainless steel stand with good quality ... rubber wheel which make you easy to carry the boat2)You ... could fix the launch wheel on your inflatable boat's transom,then you could ...