These Aluminum mounts will stabilize your cooler or drybox for a reliable rowing seat. I have a set for 1" straps and a set for 1.5" straps. Your choice. Use the cam straps you already have in your bag. 90 degree mounts for a dry box or 75 degree mounts for a cooler. You can adjust for the height you need on your rig. Straps not included.