Artistic Pavers® Steplock® PC1SBCSLCF412 4" x 12" Cafe Shellock® Pre-cut Single Sided Bullnose Coping for 7' Diameter Spa 1-5/8" Thickness. Steplock® pavers are designed for pedestrian applications including patios, swimming pool decks, lanais, walkways and more. Steplock® pavers and coping are also excellent for architectural and decorative uses, including raised walls, pool coping, steps, spillways, fountains, planters and benches. Artistic Paver's coordinating deck pavers, coping and specialty pieces not only give your project a great look, but they also make an easy sand-set installation, saving you time and money.