Boat Trailer Double Roller Bow Support Set of 2 59 - 84 cm 141553These double roller bow supports have a sturdy steel frame and can be installed on your boat trailer to support the bottom part of the boat, making it an indispensable part of your boat trailer. Since the height of our double roller bow supports can be adjusted between 59 84 cm, they are suitable for smaller as well as bigger boats. With a weight of 6 kg x 2 and a wheel size of 12. 3 x 3. 3 cm, the whole structure stably supports the boat. Constructed