The Moduline Series® is a clean-lined, modern, and durable paver designed to offer the ultimate in design versatility and practicality. Its classic shape allows you to create stand-alone designs, inlays, and accents in both residential and commercial applications. The thickness of each slab is 4 inches. These units are sold per PALLET. Each pallet for the size 4" x18" contains 108 units that cover an area of 54 square feet. Each pallet for the size 4" x 24" contains 112 units that cover an area of 72 square feet. Each pallet for the size 12" x 24" contains 36 units that cover an area of 69.8 square feet. THIS ITEM IS SPECIAL ORDER. PLEASE ALLOW FOR A DELAY OF 14 BUSINESS DAYS OR MORE.