Seachoice Hollow Base Cleat 6-1/2" Chrome Ea 50-30311 by Seachoice $22.17 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Seachoice Hollow Base Cleat Each #50-30311 Size: 6-1/2" Chrome Plated Polished Cast Brass.