Seachoice Hollow Base Cleat 5-1/2" Chrome 50-30301 by Seachoice $15.30 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seachoice Hollow Base Cleat 5-1/2" Chrome #50-30301 Chrome Plated Polished Cast Brass.