SIT ON TOP KAYAK TROLLEY THIS TROLLEY IS SUITED TO ANY KAYAK WITH SELF DRAINING HOLES. This design is suited to carrying that larger craft where the width and weight of these larger craft can be unsturdy on the sit in designs. This sit on top trolley was designed so the scupper holes reduce the motion of the craft moving whilst in transportation, they secure the boat in position whilst in motion. The heavy duty large diameter wheels ensure that it moves over uneven terrain