All our products are made of GFRC. Glass Fiber Reinforced Concrete is a precast, Portland cement - based in alkali – resistant glass fibers mixed with additives sprayed into molds of real rocks and boulders. They accurately replicate the look and feel of the original item. GFRC behaves similar to reinforced concrete and combine with cement forming a mass and substantially lower weight but equal strength. Because of our unique building and rockwork design techniques, complex yet stable rock formations of monolithic proportions can be installed.